# How to Subtract Fractions (like 8/9 – 4/9 ) with Free Online Tutoring in Math

How to subtract fractions will help your child learn fractions with a deeper level of understanding.  This is the third article in a series of eleven.  Each article is a complete lesson on fractions.  In this article your child will learn how to illustrate the subtraction of fractions.  By creating mathematical models, your child will gain a deeper and more concrete understanding of subtracting fractions.  This deeper understanding will help to ensure a successful educational career.

Articles within this series on Fractions:

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### How to Subtract Fractions with Online Tutoring in Math: Challenge 1 Watch Me National Go-Kart Race

You and your three very best friends are invited to the National Go-Kart Race.  The race course is 8/9 of a mile long.  It twists this way and that; curving around tight corners and then shooting up one hill and down another.  You are driving like a pro.  You are in the lead.  You have completed 4/9 of the course.

How much further must you go in order to win the race?

Watch this Free Tutoring for Math Video!

## Could your child benefit from a little One-On-One tutoring?

The problem below is called a “Work with Me” challenge.  This challenge encourages your child to work step-by-step along side me to solve this challenge.  All of the following challenges are called “On Your Own” challenges.  However, many of my students who struggle with fractions will do five or six of the “On Your Own” challenges as a “Work with Me” challenge.  They play the video, pause it, and copy the strategies until they feel comfortable and confident.  Doing the problems as a “Work with Me” challenge is like having a personal tutor.

### How to Subtract Fractions with Online Tutoring in Math: Challenge 2 Work With Me Kangaroo Feeding Time

You and your parents are visiting family friends who live in Australia.  They work at an animal habitat where they save injured animals.  There is a friendly kangaroo that needs to be fed, so they ask you to feed him.  You look at the bag of food and see that it is 5/7 full.  You feed the kangaroo 2/7 of the bag.

How much food is left in the bag?

Watch this Free Tutoring for Math Video!

###### Gather your materials and press PLAY.  We’ll solve this problem together, while you watch the math tutorial video below.

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###### I have scaffold the problems in each lesson.

*If your child needs a bit more support, they should complete the “On Your Own” problems as a “Work with Me” problem.  I have a number of students with gaps in their learning and others with a variety of  learning disabilities.  I have had incredible success, by having those students complete 5 to 7 problems within each lesson as a “Work with Me” problem.  They play a bit of the video, then pause it  and copy, then watch a bit more, pause it and copy.  My students Play – Pause – and Copy until the entire problem is solved.  This is like having a personal tutor working through each and every problem with your child.  Every one of my students who has used this strategy has passed the Common Core Proficiency Exam.

### How to Subtract Fractions with Online Tutoring in Math: Challenge 3 On Your Own Baby Elephant Bath

You are on safari when you come across these two baby elephants playing in a river.  Your guide tells you that the two elephants are sisters and that they typically spend 6/7 of an hour playing and spraying in this river every day.  You watched them enter the river 5/7 of an hour ago, and they have been playing non-stop the entire time.  If the two baby elephants spend their typical amount of time in the water, how much time do they have left to play in the river?

Watch this Free Tutoring for Math Video!

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## Do your children get frustrated when they make a mistake?

We all make mistakes.  As a matter of fact, making mistakes is an essential part of the learning process.  This is why at the end of each of the following “On Your Own” challenges I encourage children to fix their mistakes.  Finding and fixing your own mistake is the fastest way to learn.

### How to Subtract Fractions with Online Tutoring in Math: Challenge 4 On Your Own Household Chores

Your parents give you a weekly chore that must be completed every Saturday before you can play with your friends.  This week you have to rake the leaves in the back yard.  Your back yard is 9/13 of an acre.  That’s pretty big, but you want to complete your chore, because your best friend invited you to go see a movie.  The movie starts in one hour and you have only finished 5/13 of an acre.

How much more must you rake in order to go to see the movie with your friend?

Watch this Free Tutoring for Math Video!

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### How to Subtract Fractions with Online Tutoring in Math: Challenge 5 On Your Own Wally the Warthog

Wally the warthog loves the Mohawk-Style hair that runs from his forehead to the tip of his tail.  He spends 5/6 of each and every day walking from one bush to another.  He uses the branches to untangle his Mohawk, so that it turns into a flowing stream of silky hair.  He has already spent 3/6 of the day pruning his Mohawk.

How much more of Wally’s day will be spent combing his hair?

Watch this Free Tutoring for Math Video!

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### How to Subtract Fractions with Online Tutoring in Math: Challenge 6 On Your Own Birthday Present

It’s your dad’s birthday next weekend.  You have decided to knit him a sweater, because he works in a cold office and loves wearing sweaters.  In order to knit a sweater that will fit your father, you need to knit 13/15 of a yard of yarn.  You have already knit 7/15 of a yard.  How much more must you knit before your father’s birthday?

Watch this Free Tutoring for Math Video!

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### How to Subtract Fractions with Online Tutoring in Math: Challenge 7 On Your Own Daniella the Dancing Squirrel

Meet Daniella the Dancing Squirrel.  She is the happiest squirrel in the entire state of Montana, and there are a lot of happy squirrels in Montana, so it’s a pretty big deal.  Daniella lives on a mountain range that is 6/8 of an acre.  Each day she dances across the entire 6/8 acre of her land.  Today, Daniella has already danced across 3/8 of an acre of her land.

How much more land must Daniella the Dancing Squirrel dance across in order to complete her daily task?

Watch this Free Tutoring for Math Video!

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### How to Subtract Fractions with Online Tutoring in Math: Challenge 8 On Your Own Your Very Own Pool

Your parents just built a brand new pool for your family.  The pool holds 5,000 gallons of water.  In order to fill the pool, you must run the garden hose for 9/11 of an entire day.  You have been holding the hose and watching the pool fill for 5/11 of the day.

How much more of the day will you stay here filling your pool?

Watch this Free Tutoring for Math Video!

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### How to Subtract Fractions with Online Tutoring in Math: Challenge 9 On Your Own Rhinoceros Horn

You are on safari when you see this mother rhinoceros and her three-year-old daughter.  Together they will eat 240 pounds of twigs, leaves and small grasses every day.  By the time the three-year-old rhinoceros is full grown, her horn will be 7/9 of a meter long.  If her horn is already 3/9 of a meter long, how much longer will it grow?

Watch this Free Tutoring for Math Video!

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### How Subtract Fractions with Online Tutoring in Math: Challenge 10 On Your Own Burt Egan the Bald Eagle

Burt Egan is the fastest Bald Eagle in the entire state of Alaska.  He was eating a meal of raw salmon when another eagle challenged Burt to a race.  They decided to race from the tip of the tree branch in the photo above across 8/10 of the entire state of Alaska.  If Burt can fly 45-miles per hour for 5/10 of the entire state, how much further will he have to fly to complete the race?

Watch this Free Tutoring for Math Video!

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### Drill & Kill

Here is where we Drill until we Kill all our mistakes!

1. The following problems can all be solved with the same strategies we used to solve the first ten problems.
2. Solve all four problems on each page.
3. Watch the video & correct your work.
5. If you get all 4 problems correct, your parent or teacher may tell you that you’re ready to move to the next book within this series.

Good Luck!

### Drill & Kill Any Mistakes Challenge 11

 Problem 1 3/5 – 2/5? Problem 2 7/9 – 3/9? Problem 3 3/4 – 1/4? Problem 4 6/7 – 4/7?

### Drill & Kill Any Mistakes Challenge 12

 Problem 1 5/6 – 4/6? Problem 2 5/7 – 3/7? Problem 3 7/8 – 3/8? Problem 4 4/5 – 2/5?

### Drill & Kill Any Mistakes Challenge 13

 Problem 1 9/11 – 2/11? Problem 2 5/6 – 2/6? Problem 3 4/5 – 1/5? Problem 4 6/8 – 5/8?

### Drill & Kill Any Mistakes Challenge 14

 Problem 1 9/12 – 4/12? Problem 2 8/11 – 5/11? Problem 3 8/9 – 5/9? Problem 4 9/13 – 7/13?
###### Need Help with Multiplication?

I have a series on Multiplication that is specifically designed for children who do not have all of their multiplication facts memorized.   The series is designed in a similar manner to this series on division, where each and every problem is linked to a video tutorial.  Here is a link to my series on Multiplication.

##### Need Help with Division?

I have a series on division that is specifically designed for children who do not have all of their multiplication facts memorized.   The series is designed in a similar manner to this series on multiplication, where each and every problem is linked to a video tutorial.  Here is a link to my series on Division.

### Want More Tutorials?

TeachersDungeon is an Educational Fantasy Game.  It is 100% FREE!  The game is set to the Common Core Educational Standards, and is web-based, so it can be played on any device.  Many of the questions are accompanied by tutorials like the ones you saw here.

## One Last Thing

If you like this post and found it helpful, please leave a brief comment.   As a teacher, perhaps the greatest reward I receive is from parents, children, and fellow teachers who use my strategies of education and succeed.

My mission in life and as an educator is to make people feel empowered, self-assured, and happy about who they are in this world!  We all have gifts to bestow upon our world.  Go forth and do so, and know that you are awesome!

###### Have a fantastic day – Brian McCoy

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