Sums and Differences of Fractions

9/10 - 3/8 =

• 1 1/2

• 1

• 0

• 2

• 1/2

5/8 + 2/5 =

• 1 1/2

• 1

• 0

• 2

• 1/2

6/7 + 3/5 =

• 1 1/2

• 1

• 0

• 2

• 1/2

3/8 - 1/6 =

• 1 1/2

• 1

• 0

• 2

• 1/2

7/12 + 1/7 =

• 1 1/2

• 1

• 0

• 2

• 1/2

Multi-Step Michaela has 11/12 yard of orange fabric and 7/8 yard of green fabric. She uses 1/2 yard of each color for her sewing project. About how much fabric does Michaela have left if she combines the two colors?

• 1 yard

• 1/2 yard

• 1 1/2 yards

• 2 yards

Dustin buys 9 /10 yard of striped fabric. He uses 3/8 yard. He buys 7/8 yard more. About how much fabric does Dustin have now?

• yard

• /2 yard

• 1 1/2 yards

• 2 yards

Which sum is greatest? Use estimation to decide.

• 2/7 + 3/8

• 1/10 + 3/8

• 1/6 + 1/8

• 2/9 + 1/8

Which statement is not correct? Use estimation to decide.

• 2/3 + 5/9 > 4/8 + 7/12

• 3/4 + 5/12 < 5/12 + 3/10

• 2/9 + 2/5 < 5/6 + 1/10

• 5/9 + 9/10 > 5/12 + 2/3

Which of the following best describes the difference for 11/12 − 7/10 ?

• less than 1/2

• greater than 1/2

• greater than 1

• greater than 1 1/2