Compare 81/20 and 2/40
1st number: 4 1/20, 2nd number: 2/40
81/20 is greater than 2/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
81/20 = 81 × 2/20 × 2 = 162/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
2/40 = 2 × 1/40 × 1 = 2/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 162/40 > 2/40 or 81/20 > 2/40
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 4/40 81/40 and 2/40 81/20 and 2/80 81/20 and 6/40 81/60 and 2/40 81/20 and 10/40 81/20 and 14/40