Subtracting Fractions with Uncommon Denominators

Find the least common denominator for the fractions 1/3 and 2/5.

• 10

• 8

• 12

• 15

Convert the fractions 3/4 and 2/7 to have a common denominator.

• 5/9 and 3/7

• 21/28 and 8/28

• 6/8 and 3/7

• 10/14 and 4/14

Subtract 1/2 from 3/4 and simplify the result.

• 1/4

• 5/8

• 3/5

• 2/3

A recipe calls for 3/4 cup of flour, but you only have 1/2 cup. How much more flour do you need to buy?

• 1/4 cup

• 1/2 cup

• 3/4 cup

• 1/8 cup

If a piece of wood is 5/8 inch long and you cut off 3/16 inch, how long is the remaining piece?

• 5/16 inch

• 7/16 inch

• 3/8 inch

• 1/2 inch

Find the least common denominator for the fractions 2/9 and 5/6.

• 15

• 12

• 18

• 3

Convert the fractions 4/7 and 3/5 to have a common denominator.

• 4/7 = 16/35, 3/5 = 18/35

• 4/7 = 20/35, 3/5 = 21/35

• 4/7 = 25/35, 3/5 = 28/35

• 4/7 = 10/35, 3/5 = 15/35

Subtract 2/3 from 5/8 and simplify the result.

• -11/24

• 3/11

• 7/24

• -1/5

A rope is 7/8 yard long. If you cut off 1/4 yard, how long is the remaining rope?

• 1/2 yard

• 2/3 yard

• 5/8 yard

• 3/4 yard

If a pizza is divided into 8 slices and you eat 3/4 of it, how many slices are left?

• 5 slices

• 1 slice

• 2 slices

• 4 slices