Compare 81/6 and 21/5
1st number: 13 3/6, 2nd number: 4 1/5
81/6 is greater than 21/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
81/6 = 81 × 5/6 × 5 = 405/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
21/5 = 21 × 6/5 × 6 = 126/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/30 > 126/30 or 81/6 > 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/6 and 42/5 81/12 and 21/5 81/6 and 21/10 81/6 and 63/5 81/18 and 21/5 81/6 and 21/15 81/30 and 21/5 81/6 and 21/25 81/42 and 21/5 81/6 and 21/35