Answer:
Step-by-step explanation:
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To figure this out, you want both fractions to have the same denominator. So, you would find the GCF (Greatest Common Factor).
The GCF for 4 and 40 would be 40 because 4 * 10 = 40 and 40 * 1 = 40.
To make the whole fraction have the denominator 40, you have to multiply the numerator and the denominator by 10.
So,
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