4th Grade Math Review

adding fractions

100

1/5 + 4/5

5/5 or 1

200

15/30 + 14/30

29/30

300

1/10 + 5/10

6/10

400

5/18 + 6/18

11/18

500

10/20+ 9/20

19/20

subtracting fractions

100

3/4 - 1/4

2/4

200

5/8 - 3/8

2/8

300

2/20 - 1/20

1/20

400

7/9 - 5/9

2/9

500

4/5 - 3/5

1/5

product of a whole and unit fractions

100

3/8

1/8 x 3

200

1/4

1/4 x 1

300

5/8

1/8 X 5

400

8/4

1/4 x 8

500

5/100

1/100 x 5

Adding mixed numbers

100

1  1/20 + 2  2/20

3 3/20

200

4  5/15 +  1  6/15

5    11/15

300

11  2/4  + 1  1/4

12 3/4

400

15  6/9  +  3  1/9

18  7/9

500

70  16/20  +  1  1/20

71  17/20