Compare 21/10 and 75/9
1st number: 2 1/10, 2nd number: 8 3/9
21/10 is smaller than 75/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
21/10 = 21 × 9/10 × 9 = 189/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
75/9 = 75 × 10/9 × 10 = 750/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 189/90 < 750/90 or 21/10 < 75/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10 and 75/9 21/20 and 75/9 21/10 and 75/18 63/10 and 75/9 21/30 and 75/9 21/10 and 75/27 21/50 and 75/9 21/10 and 75/45 21/70 and 75/9 21/10 and 75/63