Compare 30/36 and 21/10
1st number: 30/36, 2nd number: 2 1/10
30/36 is smaller than 21/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 10 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
30/36 = 30 × 5/36 × 5 = 150/180 - Likewise, for the 2nd fraction, since 10 × 18 = 180,
21/10 = 21 × 18/10 × 18 = 378/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/180 < 378/180 or 30/36 < 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/36 and 21/10 30/36 and 42/10 30/72 and 21/10 30/36 and 21/20 90/36 and 21/10 30/36 and 63/10 30/36 and 21/30 30/36 and 21/50 30/36 and 21/70