Compare 10/42 and 50/15, Which fraction is greater?

Compare 10/42 and 50/15

1^st number: 10/42, 2^nd number: 3 5/15

10/42 is smaller than 50/15

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210
Likewise, for the 2nd fraction, since 15 × 14 = 210,
50/15 = 50 × 14/15 × 14 = 700/210
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
50/210 < 700/210 or 10/42 < 50/15

MathStep (Works offline)

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