Compare 21/12 and 18/75
1st number: 1 9/12, 2nd number: 18/75
21/12 is greater than 18/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
18/75 = 18 × 4/75 × 4 = 72/300 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 525/300 > 72/300 or 21/12 > 18/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12 and 18/75 21/12 and 36/75 21/24 and 18/75 63/12 and 18/75 21/12 and 54/75 21/36 and 18/75 21/12 and 90/75 21/60 and 18/75 21/84 and 18/75