Compare 15/7 and 84/80, Which fraction is greater?

Compare 15/7 and 84/80

1^st number: 2 1/7, 2^nd number: 1 4/80

15/7 is greater than 84/80

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 7 × 80 = 560,
15/7 = 15 × 80/7 × 80 = 1200/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
84/80 = 84 × 7/80 × 7 = 588/560
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
1200/560 > 588/560 or 15/7 > 84/80

MathStep (Works offline)

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