KS2 Primary Maths Age 9-13 - Fractions, Decimals and Percentages: Multiplying Fractions - Explained

The video tutorial addresses a math problem involving the multiplication of fractions, specifically 1 1/2 * 57. The teacher explains two methods to solve the problem: the traditional method using fractions and an alternative method using division. Both methods are demonstrated step-by-step, and the teacher concludes that either method is acceptable for obtaining the correct answer. The tutorial emphasizes understanding different approaches to solving math problems and encourages students to choose the method they are most comfortable with.

What is the first step in the traditional method of multiplying 1 1/2 by 57?

• Convert 1 1/2 to an improper fraction

• Multiply 1 by 57

• Add 1 and 57

• Divide 57 by 2

What is the result of multiplying 3 by 57 in the traditional method?

• 28.5

• 171

• 85.5

• 57

In the alternative method, what operation is performed after multiplying 1 by 57?

• Add 57 and 28.5

• Multiply 57 by 2

• Subtract 28.5 from 57

• Find half of 57

How is the final answer expressed in the alternative method?

• As a percentage

• As a whole number

• As a mixed number

• As a decimal

What is the teacher's recommendation for ensuring the correct answer?

• Use a calculator

• Use the alternative method

• Guess the answer

• Stick to the traditional method