Rational Numbers

Addition

100

3.9+12=

15.9

200

(-5/6)-(-7/8)-(-4/6)

0.70833333333

300

9/4 - (-7/8)=

3.125

400

-3.8 + 23

19.2

500

3/7 + 56/7

59/7

Subtraction

100

-5/7 - 3/7

-2/7

200

2.5 + (-10.3)

-7.8

300

-34 - 3.4 =

-37.4

400

(-5/8)- 9/2 - 3/8

-5.5

500

15/10 + (-10)

-8.5

Multiplication

100

6/3 x 8.7

17.4

200

-4/3 x -2.43

3.24

300

-9/2 x -4/1

18

400

5 x 5/2

12.5

500

-6.9 x -4.6

31.74

Division

100

(3.2 )/ (3)

1.06

200

(4/5) / 5

0.16

300

(7) / (4)

1.75

400

(17.8) / (12.5)

1.42

500

(84.3) / (73.2

1.151