Fractions and Common Denominators

The video tutorial explains how to solve a problem by finding a common denominator for fractions. It demonstrates the process of multiplying denominators to find a common factor, converting fractions to equivalent forms, and performing subtraction to find the final result.

What is the first step in finding a common denominator for two fractions?

• Subtract the denominators

• Add the numerators

• Divide the numerators

• Multiply the denominators

What is the common denominator used for the fractions 7/8 and 4/5?

• 20

• 30

• 40

• 50

How do you convert 7/8 to an equivalent fraction with a denominator of 40?

• Multiply both numerator and denominator by 5

• Multiply both numerator and denominator by 8

• Multiply both numerator and denominator by 4

• Multiply both numerator and denominator by 6

What is the equivalent fraction of 4/5 with a denominator of 40?

• 32/40

• 28/40

• 36/40

• 40/40

What is the result of subtracting 32/40 from 35/40?

• 4/40

• 3/40

• 2/40

• 1/40