Compare 6/12 and 21/70, Which fraction is greater?

Compare 6/12 and 21/70

6/12 is greater than 21/70

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 12 × 35 = 420,
6/12 = 6 × 35/12 × 35 = 210/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
21/70 = 21 × 6/70 × 6 = 126/420
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
210/420 > 126/420 or 6/12 > 21/70

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