Compare 81/20 and 40/63
1st number: 4 1/20, 2nd number: 40/63
81/20 is greater than 40/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
81/20 = 81 × 63/20 × 63 = 5103/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
40/63 = 40 × 20/63 × 20 = 800/1260 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 5103/1260 > 800/1260 or 81/20 > 40/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/20 and 80/63 81/40 and 40/63 81/60 and 40/63