Compare 42/80 and 42/30, Which fraction is greater?

Compare 42/80 and 42/30

1^st number: 42/80, 2^nd number: 1 12/30

42/80 is smaller than 42/30

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240
Likewise, for the 2nd fraction, since 30 × 8 = 240,
42/30 = 42 × 8/30 × 8 = 336/240
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
126/240 < 336/240 or 42/80 < 42/30

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