Compare 63/21 and 45/30, Which fraction is greater?

Compare 63/21 and 45/30

1^st number: 3 0/21, 2^nd number: 1 15/30

63/21 is greater than 45/30

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,
63/21 = 63 × 10/21 × 10 = 630/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
45/30 = 45 × 7/30 × 7 = 315/210
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
630/210 > 315/210 or 63/21 > 45/30

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