Compare 70/21 and 84/30, Which fraction is greater?

Compare 70/21 and 84/30

1^st number: 3 7/21, 2^nd number: 2 24/30

70/21 is greater than 84/30

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
84/30 = 84 × 7/30 × 7 = 588/210
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
700/210 > 588/210 or 70/21 > 84/30

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