Adding/Subtracting Like Fractions

Adding Fractions

100

1/3 + 1/3 =

2/3

200

2/5 + 1/5 =

3/5

300

6/10 + 3/10 =

9/10

400

13/18 + 3/18 = 

16/18

500

3/19 + 7/19 + 8/19 =

18/19

Subtracting Fractions

100

7/9 - 3/9 =

4/9

200

4/8 - 3/8 =

1/8

300

9/11 - 7/11 =

2/11

400

5/13 - 5/13 = 

0 or 0/13

500

16/20 - 5/20 - 9/20 =

2/20

Mixed

100

3/5 + 2/5 - 4/5 =

1/5

200

3/3 - 2/3 + 1/3 =

2/3

300

10/15 - 5/15 + 6/15 =

11/15

400

13/17 - 4/17 + 7/17 =

16/17

500

3/22 + 14/22 - 6/22 - 11/22 =

0/22 or 0

Picturing Fractions

100

If I have a circle split into 3 pieces, and I want a fraction of 1/3, I want...

1 piece 

200

A pie is cut into 5 pieces. If I want 4/5 of the pie, I want...

4 pieces 

300

I take 5 pieces out of 8 pieces of pie. I took a fraction of...

5/8

400

A pizza split into 12 pieces is shared between me and a friend. I ate 3 pieces and my friend ate 6. My friend ate a fraction of...

6/12

500

Me and my sister share a cake split into 14 pieces. I ate 2 pieces and my sister ate 3. All together, we ate a fraction of...

5/14

Random

100

13/25 + 7/25 =

20/25

200

9/9 - 7/9 + 5/9 =

7/9

300

I have a cookie and I break it into 2 pieces. I only eat one piece, meaning I ate a fraction of...

1/2

400

6/19 - 6/19 =

0 or 0/19

500

5/29 + 17/29 + 2/29 - 14/29 =

10/29