Compare 21/70 and 70/36, Which fraction is greater?

Compare 21/70 and 70/36

1^st number: 21/70, 2^nd number: 1 34/36

21/70 is smaller than 70/36

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 70 × 18 = 1260,
21/70 = 21 × 18/70 × 18 = 378/1260
Likewise, for the 2nd fraction, since 36 × 35 = 1260,
70/36 = 70 × 35/36 × 35 = 2450/1260
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
378/1260 < 2450/1260 or 21/70 < 70/36

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