Compare 81/32 and 21/9
1st number: 2 17/32, 2nd number: 2 3/9
81/32 is greater than 21/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 9 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 32 × 9 = 288,
81/32 = 81 × 9/32 × 9 = 729/288 - Likewise, for the 2nd fraction, since 9 × 32 = 288,
21/9 = 21 × 32/9 × 32 = 672/288 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 729/288 > 672/288 or 81/32 > 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/32 and 42/9 81/64 and 21/9 81/32 and 21/18 81/32 and 63/9 81/96 and 21/9 81/32 and 21/27 81/32 and 21/45 81/32 and 21/63