Compare 21/8 and 81/75
1st number: 2 5/8, 2nd number: 1 6/75
21/8 is greater than 81/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 75 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 8 × 75 = 600,
21/8 = 21 × 75/8 × 75 = 1575/600 - Likewise, for the 2nd fraction, since 75 × 8 = 600,
81/75 = 81 × 8/75 × 8 = 648/600 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1575/600 > 648/600 or 21/8 > 81/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8 and 81/75 21/16 and 81/75 63/8 and 81/75 21/24 and 81/75 21/40 and 81/75 21/56 and 81/75