Dividing Whole Numbers by Unit Fractions Using a Number Line

This video tutorial teaches how to divide whole numbers by unit fractions using a number line. It explains unit fractions, addresses common mistakes, and provides practical examples, such as dividing ribbon into halves. The tutorial also demonstrates how dividing by a unit fraction is equivalent to multiplying by the denominator, using examples like dividing 15 into thirds. The lesson concludes with a summary of the key concepts covered.

What is a unit fraction?

• A fraction with a numerator of 1

• A fraction with a numerator greater than the denominator

• A fraction with a denominator of 1

• A fraction with equal numerator and denominator

Why might students think dividing by a unit fraction is incorrect?

• Because the divisor is a whole number

• Because the dividend is a fraction

• Because the quotient is larger than the dividend

• Because the quotient is smaller than the dividend

If you divide 8 by 1/4, what is the result?

• 4

• 32

• 16

• 2

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

• 1.5

• 6

• 1

• 0.5

What is the equivalent operation to dividing by a unit fraction?

• Multiplying by the numerator

• Multiplying by the denominator

• Subtracting the denominator

• Adding the numerator