Mastering Multiplication and Division of Fractions and Mixed Numbers

This video tutorial covers the basics of multiplying and dividing fractions, including mixed numbers. It explains the rules for simplifying fractions, converting mixed numbers to improper fractions, and provides examples for both operations. The video also introduces the KCF method for dividing fractions, emphasizing the importance of keeping, changing, and flipping fractions to solve division problems.

What is the main learning target of this video?

• To learn how to solve fraction word problems

• To learn how to convert fractions to decimals

• To learn how to multiply and divide fractions

• To learn how to add and subtract fractions

Tags

CCSS.7.NS.A.1C

What is the first rule to keep in mind when multiplying fractions?

• Multiply the denominators first

• Convert fractions to decimals

• Always add the numerators

• Simplify early and often

Tags

CCSS.5.NF.B.6

When multiplying fractions, which of the following is NOT allowed?

• Simplifying diagonally

• Simplifying horizontally

• Simplifying early

• Simplifying vertically

Tags

CCSS.5.NF.B.6

In the example 3/4 times 7/10, why can't you simplify 4 and 10?

• Because they are prime numbers

• Because they are not in the same fraction

• Because you can only simplify vertically or diagonally

• Because they are already simplified

Tags

CCSS.5.NF.B.6

What must you do with mixed numbers before multiplying them?

• Convert them to improper fractions

• Subtract the whole number part

• Convert them to decimals

• Add them together

What does the 'K' in KCF stand for when dividing fractions?

• Kick

• Kite

• Keep

• Know

Tags

CCSS.6.NS.A.1

What does the 'C' in KCF stand for?

• Combine

• Change

• Convert

• Calculate

What does the 'F' in KCF stand for?

• Factor

• Flip

• Fraction

• Find

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

When dividing fractions, what do you do after applying KCF?

• Add the fractions

• Subtract the fractions

• Multiply the fractions

• Divide the fractions

Tags

CCSS.6.NS.A.1

What is the first step when dividing mixed numbers?

• Subtract the fractions

• Add the whole numbers

• Multiply the whole numbers

• Convert them to improper fractions