Dividing a Whole Number by a Unit Fraction

The video tutorial explains how Sasha can measure 8 cups of flour using a 1/2 cup measuring cup. It demonstrates dividing a whole number by a unit fraction by converting the division into multiplication using the reciprocal. The solution is verified by reversing the operation, ensuring the answer is correct. The lesson concludes with a summary of the concept of dividing by fractions.

Sasha needs to measure 8 cups of flour using a 1/2 cup measuring cup. How many 1/2 cups does she need?

• 20

• 8

• 16

• 12

What is the first step in converting a division problem involving fractions into a multiplication problem?

• Divide by the reciprocal

• Multiply by the reciprocal

• Subtract the numbers

• Add the numbers

What is the result of multiplying 8 by 2 in the context of this problem?

• 10

• 16

• 8

• 12

How can you verify the result of a division problem involving fractions?

• By multiplying the quotient by the divisor

• By adding the quotient and divisor

• By dividing the quotient by the divisor

• By subtracting the divisor from the quotient

What is the product of multiplying 16 by 1/2?

• 12

• 6

• 8

• 10