Compare 80/21 and 1/7
1st number: 3 17/21, 2nd number: 1/7
80/21 is greater than 1/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 21 × 1 = 21,
80/21 = 80 × 1/21 × 1 = 80/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
1/7 = 1 × 3/7 × 3 = 3/21 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/21 > 3/21 or 80/21 > 1/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21 and 2/7 80/42 and 1/7 80/21 and 1/14 80/21 and 3/7 80/63 and 1/7 80/21 and 1/21 80/21 and 5/7 80/21 and 1/35 80/21 and 1/49