Subtracting Fractions

Like Denominators

100

7/12 – 3/12

4/12 OR 1/3

200

9/10 – 4/10

5/10 OR 1/2

300

13/15 – 2/15

11/15

400

5/8 – 7/8

–2/8 OR –1/4

500

11/18 – 5/18

6/18 OR 1/3

Unlike Denominators

100

1/2 – 1/6

 2/6 OR 1/3

200

5/9 – 1/3

2/9

300

7/10 – 1/4

9/20

400

3/4 – 2/5

7/20

500

8/9 – 1/6

13/18

Mixed Numbers

100

3 1/4 – 1 1/4

2

200

4 2/5 – 2 1/5

2 1/5

300

6 1/8 – 3 5/8

2 4/8 OR 2 1/2

400

7 3/6 – 2 5/6

4 4/6 OR 4 2/3

500

5 1/7 – 3 6/7

1 2/7

Word Problems

100

Emma had 3/4 of a pizza. She ate 1/4 more. How much pizza is left?

2/4 OR 1/2 

200

A rope was 5/6 meter long. Mia cut off 1/3 meter. How much is left?

3/6 OR 1/2

300

A bottle had 7/10 liter of water. You drank 1/5 liter.
How much water remains?

5/10 OR 1/2 

400

You walked 2 1/2 miles and the total trip is 4 miles.
How much farther do you need to go?

1 1/2 OR 3/2

500

A board is 3 3/4 ft long. You cut a piece that is 2 2/4 ft.
How much remains?

1 1/4 OR 5/4

Challenge Round

100

11/12 – 5/6

1/12

200

2 5/9 – 1 7/9

7/9

300

13/18 – 4/9

5/18

400

5/6 – 7/12

3/12 OR 1/4

500

4 2/3 – 3 5/9

1 1/9