Compare 30/21 and 27/10
1st number: 1 9/21, 2nd number: 2 7/10
30/21 is smaller than 27/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
30/21 = 30 × 10/21 × 10 = 300/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
27/10 = 27 × 21/10 × 21 = 567/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 300/210 < 567/210 or 30/21 < 27/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21 and 27/10 30/21 and 54/10 30/42 and 27/10 30/21 and 27/20 90/21 and 27/10 30/21 and 81/10 30/63 and 27/10 30/21 and 27/30 30/21 and 27/50 30/21 and 27/70