Compare 90/7 and 42/54, Which fraction is greater?

Compare 90/7 and 42/54

1^st number: 12 6/7, 2^nd number: 42/54

90/7 is greater than 42/54

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
90/7 = 90 × 54/7 × 54 = 4860/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
42/54 = 42 × 7/54 × 7 = 294/378
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
4860/378 > 294/378 or 90/7 > 42/54

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad