Mastering Multiplication of Fractions and Mixed Numbers

Why don't we need common denominators when multiplying fractions?

• It is required for subtraction only.

• It is required for division only.

• It is required for addition only.

• It makes the process more complicated.

What is the result of multiplying 1/2 by 1/3?

• 1/5

• 1/3

• 1/4

• 1/6

How do you simplify the fraction 15/25?

• Divide both numerator and denominator by 3

• Multiply both numerator and denominator by 3

• Divide both numerator and denominator by 5

• Multiply both numerator and denominator by 2

If Mr. Thompson and his daughter ride 1/3 of a mile on the first day and 3/2 times that distance on the second day, how far did they ride on the second day?

• 1/3 mile

• 2 miles

• 1 mile

• 1/2 mile

Olivia bought 8/3 pounds of oranges and used half of it to make juice. How many pounds of oranges did she use?

• 1/2 pound

• 4/3 pounds

• 2 pounds

• 8 pounds

What is the first step in multiplying mixed numbers?

• Convert them to improper fractions

• Find a common denominator

• Add the whole numbers

• Subtract the whole numbers

How do you convert 4 1/2 to an improper fraction?

• 5/2

• 4/2

• 8/2

• 9/2

What is the result of multiplying 3/2 by 11/4?

• 33/2

• 33/16

• 33/8

• 33/4

If a faucet fills 1 1/2 gallons of water in a minute, how much water can it fill in 2 3/4 minutes?

• 3 gallons

• 4 1/8 gallons

• 2 gallons

• 5 gallons

Molly's study table is 3 1/3 feet long. If her dining table is 2 3/4 times as long, what is the length of the dining table?

• 10 feet

• 7 1/2 feet

• 8 feet

• 9 1/6 feet