Fractions: Use equivalent fractions to add and subtract fraction

During the trip, Martha drove 1/6 of the time, Chris drove 1/4 of the time, and Juan drove the rest of the time. What portion did Juan drive?

• 5/12 of the time

• 7/12 of the time

• 1/3 of the time

• 1/2 of the time

Which expression is the best estimate for 3 1/8 - 1 3/4?

• 3-1

• 4-1

• 3-2

• 1-1

Subtract the sum of 4 3/4 and 5 2/3 from 12 1/2.

• 2 1/2

• 4

• 3

• 2 1/4

Choose all the expressions that are equal to 2/3

• 1/6 + 1/2

• 5/12 + 1/4

• 2/9 + 7/18

• 2 - 1 1/3

• 1 1/6 - 1/3

Marie needs 2 1/4 yards of fabric. She already has 1 3/8 yards. How many yards of fabric does she need?

• 1/8 yard

• 3/4 yard

• 7/8 yard

• 1 7/8 yards

In the question choose whether or not if number 1/2 will make each equation true?

• 1/18 + _ = 10/18

• 1/3 + _ = 1/5

• 5/8 - _ = 1/8

• 3/4 - _ = 1/4

To estimate the sum of two mixed numbers, Carla rounds one number to 3 and the other number to 7. Which is the number she rounds to 3?

• 2 5/8

• 2 11/30

• 3 4/6

• 3 7/9