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Lay out gapfills so the student has to enter either the numerator or denominator of a fraction.

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Please enter numbers to create 4 equivalent fractions.

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{num1}[[0]] = {num2}{denom2} = {num3}[[1]] = [[2]]{denom4}

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The numerator of the first fraction ({num1}), is the numerator of the second fraction ({num2}), divided by {mult2}.

\n

So the denominator of the first fraction must be the denominator of the second fraction ({denom2}), divided by {mult2} = ?

\n

You can use the same idea to work out the denominator of the third fraction, and the numerator of the fourth fraction...

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