Compare 40/20 and 18/15
1st number: 2 0/20, 2nd number: 1 3/15
40/20 is greater than 18/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
18/15 = 18 × 4/15 × 4 = 72/60 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/60 > 72/60 or 40/20 > 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20 and 18/15 40/20 and 36/15 40/20 and 18/30 40/20 and 54/15 40/60 and 18/15 40/20 and 18/45 40/20 and 90/15 40/20 and 18/75