Compare 21/16 and 8/45, Which fraction is greater?

Compare 21/16 and 8/45

1^st number: 1 5/16, 2^nd number: 8/45

21/16 is greater than 8/45

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 45 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720
Likewise, for the 2nd fraction, since 45 × 16 = 720,
8/45 = 8 × 16/45 × 16 = 128/720
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
945/720 > 128/720 or 21/16 > 8/45

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