Compare 40/28 and 18/15
1st number: 1 12/28, 2nd number: 1 3/15
40/28 is greater than 18/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
40/28 = 40 × 15/28 × 15 = 600/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
18/15 = 18 × 28/15 × 28 = 504/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 600/420 > 504/420 or 40/28 > 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28 and 18/15 40/28 and 36/15 40/56 and 18/15 40/28 and 18/30 40/28 and 54/15 40/84 and 18/15 40/28 and 18/45 40/28 and 90/15 40/28 and 18/75