Compare 7/2 and 81/20
1st number: 3 1/2, 2nd number: 4 1/20
7/2 is smaller than 81/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
7/2 = 7 × 10/2 × 10 = 70/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 70/20 < 81/20 or 7/2 < 81/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2 and 81/20 7/4 and 81/20 7/2 and 81/40 21/2 and 81/20 7/6 and 81/20 7/2 and 81/60 35/2 and 81/20 7/10 and 81/20 49/2 and 81/20 7/14 and 81/20