Compare 15/72 and 18/15
1st number: 15/72, 2nd number: 1 3/15
15/72 is smaller than 18/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
18/15 = 18 × 24/15 × 24 = 432/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 75/360 < 432/360 or 15/72 < 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72 and 18/15 15/72 and 36/15 15/72 and 18/30 45/72 and 18/15 15/72 and 54/15 15/72 and 18/45 75/72 and 18/15 15/72 and 90/15 15/72 and 18/75