Fractions:Adding and Subtracting)

Adding With Like Denominators

100

1/2+1/2

1

200

100/100+99/100 

1  99/100

300

9/10 + 10/10

1  9/10

400

9/10+11/10

2

500

5/6 + 8/6

2  1/6

Subtracting with like denominators

100

2/3-1/3

1/3

200

5/15-3/15

2/15

300

58/60 - 49/60

3/20

400

3/2 - 1/2

1

500

7/8 -3/8

1/2

Adding and Subtracting word problems

100

Julie had 13 out of 13 toy cars she gave her friend 7 out of the 13 the toy cars how many does she have now?

6/13

200

Michal's Soccer Practice was 3/4 hours long on Tuesday and 6/4 hours long on Thursday how long was the soccer practice in one week? (don't forget to simplify!).

2  1/4

300

Wyatt got 8/10 of the yoyos he wanted for Christmas, what are other fractions that are equivalent and can be used to describe how many yoyos he got? (only need one answer)

Possible Answers:4/5  16/20  24/30  32/40  40/50  48/60  56/70  64/80  72/90  80/100  88/110  96/120..................

400

Laya has 5/4 of a dollar the napkins cost 1/4 of a dollar and the plates cost 3/4 of a dollar does she have enough, if so how much does she have left?

yes, 1/4 left

500

Susie's class needs 25 packs of paper they have 16 of the 25 how many more packs do they need? (Don't forget to simplify!).

3/5

Adding with unlike Denominators

100

5/50 + 6/25

17/50

200

1/4+4/6

11/12

300

1/3+2/6

2/3

400

30/96+25/48

5/6

500

4/6 + 3/8

1  1/24

Subtracting with unlike Denominators

100

1/3-1/4

1/12

200

5/6 - 4/5

1/30

300

7/8 - 1/3

13/24

400

4/5-2/6

7/15

500

9/8 - 9/10

9/40