Rational Number Operations

Evaluate the expression.
|–5| + 8

• 3

• 13

• -13

• -3

7.9 + 18.72

• 2662

• 26.62

• 1

• 25.62

Convert into an improper fraction.

• 28/7

• 29/4

• 29/7

• 7/1

Solve:
½ + ⅖

• 9/10

• 1/2

• 5/10

• 4/10

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3

• 4

• 24

• 12

What is the least common denominator of 1/2 and 3/7?

• 2

• 14

• 7

• 28

Yao drank ¹¹ /₄ bottles of water during a soccer game. What is the number expressed as a mixed number?

• 3 ¹/₄

• 2 ³/₄

• 2 ¹/₂

• 2 ¹/₄

1/4 + 5/8

• 2/8

• 6/12

• 3/4

• 7/8

8/9 - 1/3 = 

• 7/6

• 5/9

• 2/3

• 8/27

4/5 - 1/20 = 

• 0

• 20/15

• 3/15

• 15/20