Fraction Sums

Use < or > to show which sum is reasonable.

• 1/3 + 1/2 > 1

• 1/3 + 1/2 < 1

Estimate whether the sum is reasonable. 1/10 + 3/5 is about 1.

• Reasonable

• Not reasonable

Gavin, Olivia, and Michael are writing a report. Gavin has written 2/5 of the report, Olivia has written 1/8 of the report, and Michael has written 2/10 of the report. Estimate to decide if they have more or less than 1/2 of their report left to write.

• less than 1/2

• more than 1/2

Harry filled 1/4 of a pitcher with water. Then he filled another 6/10 of the pitcher with water. Estimate what fraction of the pitcher is filled with water.

• 1/2

• 1/4

• 3/4

• 1

4/15 + 11/15 =

• 15

• 15/15 or 1

• 4/15

• 15/30

Estimate and Solve 2/9 + 7/8

• 0

• 1/2

• 1

17/20 - 6/20

• 11

• 23/20

• 11/20

• 11/0

2/3 + 1/2 = 

• 6/7

• 2/6

• 3/5

• 7/6

There was 7/8 of a yard of fabric left and Lisa used 6/8 of it on her Halloween costume. How much fabric is left?

• 1/8 yard

• 13/8 yards

• 2/8 yard

• Not enough information

Estimate the sum or difference:

5/9 - 3/8

• 0

• 1/2

• 1