Compare 81/21 and 7/35
1st number: 3 18/21, 2nd number: 7/35
81/21 is greater than 7/35
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
81/21 = 81 × 5/21 × 5 = 405/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
7/35 = 7 × 3/35 × 3 = 21/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/105 > 21/105 or 81/21 > 7/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/21 and 14/35 81/42 and 7/35 81/21 and 7/70 81/21 and 21/35 81/63 and 7/35 81/21 and 49/35