Compare 20/24 and 2/21
20/24 is greater than 2/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
20/24 = 20 × 7/24 × 7 = 140/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
2/21 = 2 × 8/21 × 8 = 16/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 140/168 > 16/168 or 20/24 > 2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/24 and 2/21 20/24 and 4/21 20/48 and 2/21 20/24 and 2/42 60/24 and 2/21 20/24 and 6/21 20/72 and 2/21 20/24 and 2/63 20/24 and 10/21 20/24 and 14/21