Understanding Cross Products in Fractions

The video tutorial explains how to compare two fractions using cross products. It provides a step-by-step example comparing the fractions 9/16 and 5/9, demonstrating that 9/16 is larger because its cross product is greater. The method is valid for positive fractions.

What is the purpose of using cross products when comparing two fractions?

• To find the common denominator

• To convert fractions to decimals

• To determine which fraction is larger

• To simplify the fractions

In the example given, what is the cross product of 9/16 when compared to 5/9?

• 90

• 81

• 80

• 45

Which fraction is larger based on the cross product method: 9/16 or 5/9?

• Cannot be determined

• 5/9

• 9/16

• They are equal

What is the result of the cross product 16 times 5 in the example?

• 90

• 85

• 80

• 75

When does the cross product method work effectively?

• Only for fractions with the same denominator

• Only for fractions with the same numerator

• For any fractions

• Only for positive fractions