Compare 21/25 and 40/30, Which fraction is greater?

Compare 21/25 and 40/30

1^st number: 21/25, 2^nd number: 1 10/30

21/25 is smaller than 40/30

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150

Next, find the equivalent fraction of both fractional numbers with denominator 150
For the 1st fraction, since 25 × 6 = 150,
21/25 = 21 × 6/25 × 6 = 126/150
Likewise, for the 2nd fraction, since 30 × 5 = 150,
40/30 = 40 × 5/30 × 5 = 200/150
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
126/150 < 200/150 or 21/25 < 40/30

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