Compare 18/9 and 42/40, Which fraction is greater?

Compare 18/9 and 42/40

1^st number: 2 0/9, 2^nd number: 1 2/40

18/9 is greater than 42/40

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 9 × 40 = 360,
18/9 = 18 × 40/9 × 40 = 720/360
Likewise, for the 2nd fraction, since 40 × 9 = 360,
42/40 = 42 × 9/40 × 9 = 378/360
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
720/360 > 378/360 or 18/9 > 42/40

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