Compare 9/64 and 21/10, Which fraction is greater?

Compare 9/64 and 21/10

1^st number: 9/64, 2^nd number: 2 1/10

9/64 is smaller than 21/10

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 10 is 320

Next, find the equivalent fraction of both fractional numbers with denominator 320
For the 1st fraction, since 64 × 5 = 320,
9/64 = 9 × 5/64 × 5 = 45/320
Likewise, for the 2nd fraction, since 10 × 32 = 320,
21/10 = 21 × 32/10 × 32 = 672/320
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
45/320 < 672/320 or 9/64 < 21/10

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