Compare 40/63 and 20/15
1st number: 40/63, 2nd number: 1 5/15
40/63 is smaller than 20/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
40/63 = 40 × 5/63 × 5 = 200/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
20/15 = 20 × 21/15 × 21 = 420/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200/315 < 420/315 or 40/63 < 20/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63 and 20/15 40/63 and 40/15 40/63 and 20/30 40/63 and 60/15 40/63 and 20/45 40/63 and 20/75