Compare 10/21 and 72/56
1st number: 10/21, 2nd number: 1 16/56
10/21 is smaller than 72/56
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
10/21 = 10 × 8/21 × 8 = 80/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
72/56 = 72 × 3/56 × 3 = 216/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/168 < 216/168 or 10/21 < 72/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/21 and 72/56 10/42 and 72/56 30/21 and 72/56 10/63 and 72/56 50/21 and 72/56 70/21 and 72/56