Compare 10/21 and 4/70, Which fraction is greater?

Compare 10/21 and 4/70

10/21 is greater than 4/70

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
10/21 = 10 × 10/21 × 10 = 100/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
4/70 = 4 × 3/70 × 3 = 12/210
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
100/210 > 12/210 or 10/21 > 4/70

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