Compare 4/20 and 21/75
4/20 is smaller than 21/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
4/20 = 4 × 15/20 × 15 = 60/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
21/75 = 21 × 4/75 × 4 = 84/300 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/300 < 84/300 or 4/20 < 21/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20 and 21/75 4/20 and 42/75 4/40 and 21/75 12/20 and 21/75 4/20 and 63/75 4/60 and 21/75 28/20 and 21/75