Compare 81/14 and 20/30
1st number: 5 11/14, 2nd number: 20/30
81/14 is greater than 20/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
81/14 = 81 × 15/14 × 15 = 1215/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
20/30 = 20 × 7/30 × 7 = 140/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1215/210 > 140/210 or 81/14 > 20/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/14 and 40/30 81/28 and 20/30 81/14 and 20/60 81/14 and 60/30 81/42 and 20/30 81/14 and 20/90 81/70 and 20/30 81/98 and 20/30