Use common factors to write two fractions equivalent to 80/140

20/35, 16/28
20/32, 16/28
22/37, 20/28
20/35, 22/37

80/140 = (80:20)/(140:20) = 4/7

4/7 = (4*4)/(7*4) = 16/28

4/7 = (4*5)/(7*5) = 20/35 not 20/28 not 20/32

4/7 = (4*5.5)/(7*5.5) = 22/38.5 not 22/37

a

step-by-step explanation:

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