Compare 18/40 and 40/27, Which fraction is greater?

Compare 18/40 and 40/27

1^st number: 18/40, 2^nd number: 1 13/27

18/40 is smaller than 40/27

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 40 × 27 = 1080,
18/40 = 18 × 27/40 × 27 = 486/1080
Likewise, for the 2nd fraction, since 27 × 40 = 1080,
40/27 = 40 × 40/27 × 40 = 1600/1080
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
486/1080 < 1600/1080 or 18/40 < 40/27

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