It is asking you to find an equivalent fraction to 
with 18 as the numerator.
Let's practise
= 18/
- Read the question and then read it again. What is it asking you to do?
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- To make an equivalent fraction, the numerator and denominator are multiplied by the same number.
For the first fraction, what has the numerator 3 been multiplied by to give the numerator 18?
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= 18/?
3 × 6 = 18
- To keep the numerator and denominator in proportion, multiply the denominator by 6 as well.
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5 × 6 = 30
- What is your answer?
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= 
- Check your working using the inverse.
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18 ÷ 6 = 3
30 ÷ 6 = 5
So, is equivalent to