To reduce a fraction, you have to divide the top (numerator) and denominator by the same number. It has to divide evenly (no remainders). Dividing the top and bottom of the fraction by the same number is the same as multiplying by 1. You have to find factors. It’s like multiplication tables in reverse. You are given the answer, say 30, and you have to come up with the question (factors), 5 x 6 or 3 x 10.
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