Compare 21/36 and 14/20
21/36 is smaller than 14/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
14/20 = 14 × 9/20 × 9 = 126/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/180 < 126/180 or 21/36 < 14/20
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 14/20 21/36 and 28/20 21/72 and 14/20 21/36 and 14/40 63/36 and 14/20 21/36 and 42/20 21/36 and 14/60 21/36 and 70/20 21/36 and 98/20