Which of the following is not equivalent
2 answers:
90/139 is the only fraction not equivalent to 45/70. To find if a fractions are equivalent, divide the numerator by the denominator for each fraction. 45/70=0.642857 27/42=0.642857 9/14=0.642857 63/98=0.642857 Notice how all of these get you the same number. However, when you divide 90 by 137, you get 0.64748, which is not the same as the others. Therefore, 90/137 is the fraction that is not equivalent to 45/70.
45/70= 9/14 (divide by 5)
27/42= 9/14 ( divide by 3)
63/98= 9/14 ( divide by 7)
90/139 does = 9/14 and is NOT equivalent
hope this helps
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