Compare 21/4 and 49/45, Which fraction is greater?

Compare 21/4 and 49/45

1^st number: 5 1/4, 2^nd number: 1 4/45

21/4 is greater than 49/45

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180

Next, find the equivalent fraction of both fractional numbers with denominator 180
For the 1st fraction, since 4 × 45 = 180,
21/4 = 21 × 45/4 × 45 = 945/180
Likewise, for the 2nd fraction, since 45 × 4 = 180,
49/45 = 49 × 4/45 × 4 = 196/180
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
945/180 > 196/180 or 21/4 > 49/45

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