Mastering Multiplication and Division of Fractions

This video tutorial covers the concepts of multiplying and dividing fractions. It introduces the terms multiplicative inverse and reciprocal, explaining how to find the reciprocal of a fraction. The tutorial provides step-by-step instructions on multiplying fractions, including converting mixed numbers to improper fractions and simplifying results. It also explains dividing fractions using the reciprocal and the 'Keep, Flip, Change' method. The video includes practice problems to reinforce the concepts.

What is another term for the multiplicative inverse?

• Divisional counterpart

• Additive inverse

• Subtractive inverse

• Reciprocal

Tags

CCSS.HSN.CN.A.3

What is the reciprocal of 3/4?

• 12

• 1/12

• 3/4

• 4/3

How do you find the product of two fractions?

• Add the numerators and denominators

• Multiply the numerators and add the denominators

• Multiply the numerators and the denominators

• Divide the numerators and multiply the denominators

Tags

CCSS.5.NF.B.6

How do you simplify the fraction 14 over 28?

• 14 over 28

• 1 over 2

• 7 over 14

• 2 over 4

How do you convert a mixed number to an improper fraction?

• Multiply the whole number by the numerator

• Add the whole number to the numerator

• Divide the numerator by the denominator and add the whole number

• Multiply the whole number by the denominator and add the numerator

What is the first step in dividing fractions?

• Simplify the fractions

• Multiply the denominators

• Flip the first fraction

• Convert mixed numbers to improper fractions

Tags

CCSS.6.NS.A.1

What does the 'Keep, Flip, Change' method refer to?

• Adding fractions

• Subtracting fractions

• Multiplying fractions

• Dividing fractions

Tags

CCSS.6.NS.A.1

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

• 3/4

• 4/3

• 2/3

• 1/3

Tags

CCSS.6.NS.A.1

What is the result of multiplying a negative fraction by a negative fraction?

• Undefined

• Zero

• A positive fraction

• A negative fraction

Tags

CCSS.7.NS.A.2A

How can a whole number be written as a fraction?

• By multiplying it by 0

• By dividing it by 1

• By adding 1 to its numerator

• By placing it over 1

Tags

CCSS.3.NF.A.3C