Assess Reasonableness Add Subtract Fractions

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3
• 4
• 24
• 12

Sally ran 1/3 of a mile and swam 5/6 of a mile. In simplest form, how much farther did she swim than she ran?

• 1/2
• 5/18
• 4/3
• 3/6

Bart made potato salad for a picnic. He used 1/4 cup fewer onions than the recipe called for. If the recipe called for 7/8 cup of onions, what amount of onions did Bart use?

• 5/8 cup
• 3/8 cup
• 1 1/2 cups
• 3/4 cup

Tina’s hand measures 1/3 foot long. Tim’s hand measures 1/4 foot long. How much longer is Tina’s hand than Tim’s hand?

• 1/4 foot
• 7/12 foot
• 1/12 foot
• 1/7 foot

What is the difference of 7/8 - 1/3?

• 6/5
• 8/11
• 6/8
• 13/24

A recipe for crumb cakes says to mix 3/8 c. of brown sugar and 1/3 cup of white sugar. From this sugar mixture, set aside 1/4 cup for the crumb topping. The remaining sugar mixture is used to make the cake. What amount of sugar mixture is used to make the cake?

• 11/24 cup
• 1/2 cup
• 7/12 cup
• 17/24 cup

A plumber is fitting a water pipe that is 3/4 foot long on to a water pipe that is 2/12 foot long. How long will the finished pipe be?

• 11/12 foot
• 8/16 foot
• 2/12 foot
• 1 foot

Joel made some muffins. He gave 1/4 of the muffins to a neighbor. He took 3/8 of the muffins to school. What fraction of the muffins did he have left?

• 4/12
• 3/8
• 5/12
• 8/8

Carl has three lengths of cable, 5/6 yard long, 1/4 yard long, and 2/3 yard long. He needs at least 1 yard of cable. Which two pieces make a length at least 1 yard and closest to 1 yard?

• 5/6 + 2/3
• 1/4 + 2/3
• 5/6 + 1/4
• None make at least a yard

13/15 - 3/4

• 10/9
• 39/60
• 7/60
• 97/60