Compare 81/70 and 1/20
1st number: 1 11/70, 2nd number: 1/20
81/70 is greater than 1/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
81/70 = 81 × 2/70 × 2 = 162/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
1/20 = 1 × 7/20 × 7 = 7/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 162/140 > 7/140 or 81/70 > 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/70 and 2/20 81/70 and 1/40 81/70 and 3/20 81/70 and 1/60 81/70 and 5/20 81/70 and 7/20