KS2 Primary Maths Age 13-17 - Fractions, Decimals and Percentages: Adding and Subtracting Fractions - Explained

The video tutorial explains how to subtract fractions with different denominators. It begins by identifying the need for a common denominator, then demonstrates converting 3/4 to an equivalent fraction with a denominator of 8. After conversion, the fractions are subtracted, resulting in a final answer of 3/8.

Why is it necessary to have the same denominator when subtracting fractions?

• To make the numerators equal

• To simplify the fractions

• To ensure the fractions are comparable

• To convert fractions to decimals

What is the denominator of the fraction 3/4 changed to in order to subtract it from 3/8?

• 2

• 4

• 8

• 16

How do you convert 3/4 to an equivalent fraction with a denominator of 8?

• Multiply both the numerator and denominator by 4

• Multiply both the numerator and denominator by 2

• Add 4 to the numerator

• Divide both the numerator and denominator by 2

What is the result of subtracting 3/8 from 6/8?

• 1/8

• 2/8

• 4/8

• 3/8

What is the final answer for the subtraction of 3/4 and 3/8?

• 5/8

• 1/2

• 1/4

• 3/8