It is asking you to find an equivalent fraction to 
with 16 as the denominator.
Let's practise
=/16
- 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 denominator 4 been multiplied by to give the denominator 16?
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=/16
4 × 4 = 16
- To keep the numerator and denominator in proportion, multiply the numerator by 4 as well.
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3 × 4 = 12
- What is your answer?
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= 
- Check your working using the inverse.
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12 ÷ 4 = 3
16 ÷ 4 = 4
So, is equivalent to