Compare 10/18 and 45/15
1st number: 10/18, 2nd number: 3 0/15
10/18 is smaller than 45/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
10/18 = 10 × 5/18 × 5 = 50/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
45/15 = 45 × 6/15 × 6 = 270/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 50/90 < 270/90 or 10/18 < 45/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18 and 45/15 10/18 and 90/15 10/36 and 45/15 10/18 and 45/30 30/18 and 45/15 10/54 and 45/15 50/18 and 45/15 10/90 and 45/15 10/18 and 45/75 70/18 and 45/15