Compare 10/75 and 3/21
10/75 is smaller than 3/21
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,
10/75 = 10 × 7/75 × 7 = 70/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
3/21 = 3 × 25/21 × 25 = 75/525 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 70/525 < 75/525 or 10/75 < 3/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/75 and 3/21 10/75 and 6/21 10/75 and 3/42 30/75 and 3/21 10/75 and 9/21 10/75 and 3/63 50/75 and 3/21 10/75 and 15/21 70/75 and 3/21