Compare 21/18 and 75/8
1st number: 1 3/18, 2nd number: 9 3/8
21/18 is smaller than 75/8
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
21/18 = 21 × 4/18 × 4 = 84/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
75/8 = 75 × 9/8 × 9 = 675/72 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/72 < 675/72 or 21/18 < 75/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/18 and 75/8 21/36 and 75/8 21/18 and 75/16 63/18 and 75/8 21/54 and 75/8 21/18 and 75/24 21/90 and 75/8 21/18 and 75/40 21/18 and 75/56