Sums and Differences of Fractions

Estimate the sum by replacing each fraction with 0, 1/2, or 1.

5/12 + 2/10 =

• 0

• 1/2

• 1

• 1 1/2

• 2

Estimate and solve.

4/9 - 1/6

• 1/2

• 1

• 1 1/2

• 0

Estimate and solve.

9/11 - 5/12

• 1

• 1 1/2

• 1/2

• 2

Estimate and solve.

7/8 - 7/9

• 0

• 1/2

• 1

• 1 1/2

What is the difference between the longest and the shortest amount?

• 7/8

• 4/8

• 3/8

• 5/8

Which equation correctly represents the colored portion of picture above?

• 4/10 + 2/10 + 1/10 = 7/10

• 4/10 + 3/10 = 7/10

• 4/10 + 2/10 + 1/10 = 8/10

• 4/10 + 2/10 + 1/10 + 3/10 = 10/10

Estimate the difference by replacing each fraction with 0, 1/2, or 1.

5/12 - 2/10 =

• 0

• 1/2

• 1

• 1 1/2

• 2

Estimate the difference by replacing each fraction with 0, 1/2, or 1.

6/7 - 1/10 =

• 0

• 1/2

• 1

• 1 1/2

• 2

Estimate the difference by replacing each fraction with 0, 1/2, or 1.

11/20 - 2/35 =

• 0

• 1/2

• 1

• 1 1/2

• 2

Estimate 7 2/3 - 4 1/4=

• 3

• 6

• 4

• 7