Rational Numbers

Addition

100

2/5 + (-0.8)

-0.4 or 2/5

200

-4 3/8 + 2 1/4

-2 1/8

Subtraction

100

2/6 - (-2/3)

1 (or any form of one)

200

-4.3 - (-2.81)

-1.49

Multiplicaiton

100

4/5(-2/3)

-8/15

200

-0.6( - 2/5)

6/25

Division

100

-7/15 ÷ -1/5

7/3 or 2 1/3

200

-2 1/4 ÷ 3/8

-6

DOUBLERS

100

Change this decimal to it's simplified fraction form: 0.16

4/25

200

Convert this fraction to its decimal form: 5/8

0.625