5. Fractions

Lesson

If we can find equivalent fractions it will help us in this lesson. Let's try a problem to review.

Fill in the blank to find an equivalent fraction to \dfrac{1}{3}:

\dfrac{1}{3}= \dfrac{⬚}{6}

Worked Solution

Idea summary

Equivalent fractions look different but have the same value.

You need to multiply or divide both the numerator and the denominator of a fraction by the same number to work out the equivalent fraction.

This video shows how to add and subtract fractions by finding common denominators.

Find the value of \,\dfrac{3}{5}+\dfrac{3}{4}.

Worked Solution

Idea summary

Before we add or subtract fractions, we must first make sure that the fractions have the **same denominator**.

Solve problems involving addition and subtraction of fractions with the same or related denominators