Compare 56/75 and 15/21
56/75 is greater than 15/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
56/75 = 56 × 7/75 × 7 = 392/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
15/21 = 15 × 25/21 × 25 = 375/525 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 392/525 > 375/525 or 56/75 > 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/75 and 30/21 56/75 and 15/42 56/75 and 45/21 56/75 and 15/63 56/75 and 75/21