Compare 42/18 and 84/30, Which fraction is greater?

Compare 42/18 and 84/30

1^st number: 2 6/18, 2^nd number: 2 24/30

42/18 is smaller than 84/30

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90
Likewise, for the 2nd fraction, since 30 × 3 = 90,
84/30 = 84 × 3/30 × 3 = 252/90
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
210/90 < 252/90 or 42/18 < 84/30

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