Compare 72/16 and 80/5, Which fraction is greater?

Compare 72/16 and 80/5

1^st number: 4 8/16, 2^nd number: 16 0/5

72/16 is smaller than 80/5

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 5 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 16 × 5 = 80,
72/16 = 72 × 5/16 × 5 = 360/80
Likewise, for the 2nd fraction, since 5 × 16 = 80,
80/5 = 80 × 16/5 × 16 = 1280/80
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
360/80 < 1280/80 or 72/16 < 80/5

MathStep (Works offline)

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