Operations with Rational Numbers

Subtracting Neg. Decimals

100

12.5 - (-13.5 

26

200

1.9 - (-4.6)

6.5

300

-5.67 - 2.43

8.10

400

-19.58 - (-13.63)

-5.95

500

1.2 - (-3.1) - 6.

-4.1

Adding Neg. Decimals

100

-3.15 + 2.25

-.90

200

0.38 + (-1.2)

-0.82

300

10.63 + (-8.45)

2.23

400

-23.4 + -4.591

-27.991

500

4.6 + (-7.34) + 9.5

7.36

Fractions & Decimals

100

1/2 + 1.6

2 1/10 or 2.1

200

3.6 + 12/24

5.1 or 5 1/10

300

8/20 - 5.9

- 43/20 or -2.15

400

30/3 + 19.50

29.50 or 29 1/2

500

2/20 - 8.6 + 9/10

-152/20 or 7.6

Subtracting Neg. Fractions

100

1/8 - (-6/4)

13/8 

200

-3/18 - 18/3

-111/18

300

-1/6 + (-2/3)

-5/6

400

-3/24 - 8/2

-99/24 or 4 1/8

500

1/2 - (-3/8) - 6/2

-12/8 or 1 1/2

Adding Neg. Fraction

100

-1/4 + 3/8

-1/8

200

2/15 + -8/5 

-22/15 or 1 7/15

300

-6/11 + (-5/66)

-41/66 or 

400

-27/8 + 3/8

-24/8 or -3

500

-6/12 + -4/3 + 8/4

2/12 or 1/6