7th Grade: Operations with Rational Numbers

Convertingto/from Improper/Mixed

100

Convert 5/2 to a mixed number

2 and 1/2

200

Convert 3 and 1/4 to an improper fraction

13/4

300

Convert 11/3 to a mixed number

3 and 2/3

400

Convert 2 and 4/5 to an improper fraction

14/5

500

Convert 9/2 to a mixed number

4 and 1/2

Adding Rational Numbers

100

3/5 + 1/10

7/10

200

-1/4 + (-1/2)

-3/4

300

9/25 + (-17/25)

-8/25

400

-5/4 + 1/12

-14/12

500

To make a small amount of play dough, you can mix 1 cup of flour, 1/2 cup of salt and 1/2 cup of water. What is the total amount of ingredients added to make the play dough?

2 cups

Subtracting Rational Numbers

100

8/11 - 3/11

5/11

200

- 4/13 - 8/13

-12/13

300

5/9 - (-1/3)

8/9

400

-5/12 - (-2/24)

-1/3

500

Susie baked an apple pie. She gave 1/3 to her neighbor. How much does she have left.

2/3

Multiplying Rational Numbers

100

5 * (1/3)

1 and 2/3

200

3/4 * (-1/2)

-3/8

300

-1/6 * (-2/3)

1/9

400

-2/5 * 1/3

-2/15

500

Joe had a breakfast party. He invited four of his best friends. Each friend brought 2 and 1/2 cups of coffee. How much coffee did they all bring together?

10 cups

Dividing Rational Numbers

100

1/4 divided by 3/8

2/3

200

5 divided by (-1/2)

-10

300

-15 divided by -5/8

24

400

-1/4 divided by 2/5

-5/8

500

Emma bought 2 and 1/2 yards of ribbon to make bows for 4 of her friends. How much yard will she use for each ribbon?

5/8 yards