Percentage and Fraction Word Problems

This video tutorial covers Unit 4 Lesson 6, focusing on using diagrams to find the number of groups in division problems. It includes examples of dividing whole numbers by fractions, such as one-fourth, three-fifths, and one-half, using tape diagrams. The lesson also evaluates a statement about groups of five-sixths and explores selecting equations for groups of four-fifths. Additionally, it demonstrates mental calculations of percentages, including 10%, 25%, 50%, and 75%. The lesson concludes with a summary of the key concepts covered.

How many groups of 1/4 are in 3?

• 12

• 15

• 9

• 6

What is the result of dividing 3 by 3/5 using a tape diagram?

• 3

• 4

• 5

• 6

How many groups of 1/2 days are there in a week?

• 7

• 12

• 10

• 14

Do you agree with Diego's statement that there are 6/5 groups of 5/6 in 1?

• No, because 6/5 times 5/6 does not equal 1

• Yes, because 6/5 times 5/6 equals 1

• No, because 5/6 times 6/5 does not equal 1

• Yes, because 5/6 times 6/5 equals 1

What is 10% of 70?

• 5

• 6

• 8

• 7

What is 25% of 160?

• 30

• 35

• 40

• 45

What is 50% of 90?

• 50

• 55

• 40

• 45

What is 75% of 300?

• 275

• 250

• 225

• 200

What is 10% of 110?

• 9

• 11

• 10

• 12

What is 75% of 48?

• 38

• 34

• 36

• 32