Compare 10/20 and 90/7
1st number: 10/20, 2nd number: 12 6/7
10/20 is smaller than 90/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
10/20 = 10 × 7/20 × 7 = 70/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
90/7 = 90 × 20/7 × 20 = 1800/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 70/140 < 1800/140 or 10/20 < 90/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40 and 90/7 10/20 and 90/14 30/20 and 90/7 10/60 and 90/7 10/20 and 90/21 50/20 and 90/7 10/20 and 90/35 70/20 and 90/7 10/20 and 90/49