Compare 21/7 and 9/10, Which fraction is greater?

Compare 21/7 and 9/10

1^st number: 3 0/7, 2^nd number: 9/10

21/7 is greater than 9/10

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 7 × 10 = 70,
21/7 = 21 × 10/7 × 10 = 210/70
Likewise, for the 2nd fraction, since 10 × 7 = 70,
9/10 = 9 × 7/10 × 7 = 63/70
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
210/70 > 63/70 or 21/7 > 9/10

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