Compare 18/7 and 90/70, Which fraction is greater?

Compare 18/7 and 90/70

1^st number: 2 4/7, 2^nd number: 1 20/70

18/7 is greater than 90/70

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 7 × 10 = 70,
18/7 = 18 × 10/7 × 10 = 180/70
Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
180/70 > 90/70 or 18/7 > 90/70

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