Lesson on Multiplying and Dividing Fractions

Multiplying and Dividing Fractions

​Arithmetic Review

Draw

Find the error in the math work below. Show how to find the correct answer.

Draw

Find the error in the math work below. Show how to find the correct answer.

Multiple Choice

Jonah's dog eats 2 1/4 cups of food every day. Jonah is taking his dog on a 5-day trip. He has a bag with 12 cups of dog food left in it. Is that enough food for the trip?

• Yes! That is way more food than he'll need.

• Yes, there's enough food, but it will be close.

• No, that's almost enough food, but not quite there.

• No! He'll need a lot more food for the trip!

​Let's find the exact answer!

Jonah's dog eats 2 1/4 cups of food every day. Jonah is taking his dog on a 5-day trip. He has a bag with 12 cups of dog food left in it. Is that enough food for the trip?

Multiple Choice

Gina is making a quilt with rectangles that are 2 1/4 inches long and 5/8 inch wide. What is the area of each rectangle in square inches?

• Between 1 and 2

• Between 2 and 3

• Between 3 and 4

• Between 4 and 5

​Let's find the exact answer!

Gina is making a quilt with rectangles that are 2 1/4 inches long and 5/8 inch wide. What is the area of each rectangle in square inches?

Draw

Estimate an answer.

​Let's find the exact answer!

Gina's quilt also includes some squares with sides that are 2 1/2 inches long. If she has 180 square inches of fabric, about how many of these squares can she cut out of it?

​Reflection

What did you learn about multiplying and dividing fractions?

What do you want to remember?