Compare 15/80 and 30/6, Which fraction is greater?

Compare 15/80 and 30/6

1^st number: 15/80, 2^nd number: 5 0/6

15/80 is smaller than 30/6

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 6 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 80 × 3 = 240,
15/80 = 15 × 3/80 × 3 = 45/240
Likewise, for the 2nd fraction, since 6 × 40 = 240,
30/6 = 30 × 40/6 × 40 = 1200/240
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
45/240 < 1200/240 or 15/80 < 30/6

MathStep (Works offline)

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