Compare 15/72 and 45/50
15/72 is smaller than 45/50
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
15/72 = 15 × 25/72 × 25 = 375/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
45/50 = 45 × 36/50 × 36 = 1620/1800 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 375/1800 < 1620/1800 or 15/72 < 45/50
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 45/50 15/72 and 90/50 45/72 and 45/50 75/72 and 45/50