MATHS - Numbers - Fractions Addition and Subtraction

The video tutorial explains how to add and subtract fractions, focusing on the importance of having the same denominators. It introduces methods like the Singapore Bar Method and the LCM method to handle fractions with different denominators. The tutorial also covers converting mixed numbers to improper fractions and emphasizes simplifying the final answer.

What must be true about the denominators of fractions before you can add or subtract them?

• They must be even numbers.

• They must be prime numbers.

• They must be the same.

• They must be different.

In the Singapore Bar Method, what is the first step when adding fractions?

• Draw the first fraction as vertical bars.

• Find the lowest common multiple.

• Convert fractions to improper fractions.

• Draw the second fraction as vertical bars.

When using the Singapore Bar Method, what do you do after drawing the fractions as bars?

• Multiply the fractions by the LCM.

• Convert the fractions to decimals.

• Draw a common denominator by transferring grid lines.

• Add the numerators directly.

What is the first step in the LCM method for adding fractions?

• Add the numerators.

• Convert fractions to mixed numbers.

• Simplify the fractions.

• Find the lowest common multiple of the denominators.

How should you handle mixed numbers before adding or subtracting them?

• Convert them to decimals.

• Leave them as they are.

• Convert them to improper fractions.

• Multiply them by the LCM.