Rational Number Operations

Adding/Subtracting Fractions

100

2/3 + -3/4

-1/12

200

-3/4 + 5/6

1/12

300

7/8 - (-2/3) = 

37/24

400

-9/10-1/5

-11/10

Multiplying Fractions

100

(-1/2)(-2/3) 

What is (1/3)?

200

7/8 * (-3/4)

-21/32

300

-1/8 * 2/5

-2/40 or -1/20

Dividing Fractions

100

8/9 -: -2/5

 

What is (-40/18) or (-20/9) 

200

8/9 -: -4/7 =

-56/36 or -14/9

300

-14 -: -1/2

28

Adding and Subtracting Decimals

100

-238.32-179.57=

-417.89

200

3.2 + (-19.1) =

What is -15.9?

300

0.6 + (-0.45) =

0.15

400

-13 + (-10.05) =

-23.30

500

34.1 - 50.5 =

-16.4

Multiplying Decimals

100

−0.8 × 0.3 =

-0.24

200

1.8 x 0.5=

0.9

300

42 x 0.02 = 

0.84

400

3.5 x 1.1 =

3.85

500

-19.1 x 3.2=

What is -61.12?