Show:
Addition
Subtraction
Multiplication
Division
Multiplying Decimals
100

2/5 + 4/10

8/10

100

4/5 - 4/10

4/10

100

5/7 x 2/3

10/21

100

5/7 / 2/3

1 1/14

100

0.5 X 0.5

0.25

200

7/28 + 7/14

21/28

200

14/28 - 7/14

0/28

200

9/10 X 2/10

18/100

200

9/10 / 2/10

4 10/20

200

0.6 X 0.6 

0.36

300

5/30 + 5/15

15/30

300

10/30 - 5/15

0/30

300

3/9 X 7/9

21/81

300

3/9 / 7/9

27/63

300

0.7 X 0.7

0.49

400

8/16 +  4/32

16/32

400

10/16 - 4/32

16/32

400

24/30 X 2/10

48/300

400

24/30 / 2/10

4 0/60

400

0.8 X 0.8 

0.64

500

7/49 + 3/7

28/49

500

14/49 - 3/7

7/49

500

4/5 X 6/7

24/35

500

4/5 / 6/7

28/30

500

0.9 X 0.9 

0.81