Compare 45/28 and 15/72
1st number: 1 17/28, 2nd number: 15/72
45/28 is greater than 15/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
45/28 = 45 × 18/28 × 18 = 810/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 810/504 > 105/504 or 45/28 > 15/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28 and 15/72 45/28 and 30/72 45/56 and 15/72 45/28 and 45/72 45/84 and 15/72 45/28 and 75/72