Show:
Fraction Addition
Fraction Subtraction
Fraction Multiplication
30

1/2 + 1/3

2/6

30

5/10 - 1/5

4/10

30

3/10 x 2/20

3/100

130

2/4 + 3/5

5/20

130
5/12 - 3/8

1/24

130

8/20 x  2/30

2/75
230

5/7 + 8/9

13/63

230

30/60 - 23/4

-3/40

230

8/40 x 2/80

1/200

330

4/32 + 19/64

23/64

330
30/100 - 23/130

8/65

330

40/140 x 3/120

1/140

430

60/140 + 2/6

16/21 :O Nice job!

430

60/140 - 39/100

27/700 

Are you Zack?

430

80/540 x 34/300

If you get this right...

34/2025

...