Mastering Multiplication and Division of Fractions and Mixed Numbers

This video tutorial covers multiplying and dividing fractions and mixed numbers. It begins with basic multiplication of fractions, emphasizing that denominators do not need to be changed. The tutorial introduces cross reduction to simplify fractions before multiplication. It then explains how to handle mixed numbers by converting them to improper fractions. The video also covers dividing mixed numbers using the 'keep, change, flip' method. Throughout, the importance of simplification is highlighted.

What is the product of 5/7 and 3/8?

• 15/56

• 21/15

• 8/15

• 56/15

Tags

CCSS.5.NF.B.6

How can 3/9 be simplified before multiplying with another fraction?

• 1/1

• 1/9

• 3/3

• 1/3

What is the simplified form of 9/15?

• 9/5

• 2/3

• 1/2

• 3/5

Tags

CCSS.5.NF.B.6

What is the result of multiplying 3/5 by 2/3 after simplification?

• 2/5

• 6/15

• 3/10

• 1/1

How do you convert 4 and 2/7 to an improper fraction?

• 32/7

• 26/7

• 28/7

• 30/7

Tags

CCSS.5.NF.B.6

What is the simplified result of multiplying 30/7 by 14/5?

• 8

• 12

• 10

• 6

Tags

CCSS.6.NS.A.1

What is the first step in dividing mixed numbers?

• Convert to improper fractions

• Cross reduce

• Multiply directly

• Flip the second fraction

Tags

CCSS.7.NS.A.2B

What rule is applied when dividing fractions?

• Keep-change-flip

• Cross-multiply

• Simplify first

• Reduce denominators

Tags

CCSS.7.NS.A.2A

After applying the keep-change-flip rule, what is the next step?

• Multiply the numerators

• Convert back to mixed number

• Simplify the fraction

• Cross reduce

Tags

CCSS.6.NS.A.1

What is the simplified result of dividing 1 1/5 by 3 2/6?

• 9/25

• 10/30

• 15/50

• 5/18

Tags

CCSS.6.NS.A.1