Compare 21/36 and 20/7
1st number: 21/36, 2nd number: 2 6/7
21/36 is smaller than 20/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
20/7 = 20 × 36/7 × 36 = 720/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/252 < 720/252 or 21/36 < 20/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/36 and 20/7 21/36 and 40/7 21/72 and 20/7 21/36 and 20/14 63/36 and 20/7 21/36 and 60/7 21/36 and 20/21 21/36 and 20/35 21/36 and 20/49