Compare 21/4 and 75/18
1st number: 5 1/4, 2nd number: 4 3/18
21/4 is greater than 75/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
21/4 = 21 × 9/4 × 9 = 189/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
75/18 = 75 × 2/18 × 2 = 150/36 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 189/36 > 150/36 or 21/4 > 75/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4 and 75/18 21/8 and 75/18 21/4 and 75/36 63/4 and 75/18 21/12 and 75/18 21/4 and 75/54 21/20 and 75/18 21/4 and 75/90 21/28 and 75/18