Compare 20/21 and 27/6
1st number: 20/21, 2nd number: 4 3/6
20/21 is smaller than 27/6
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
20/21 = 20 × 2/21 × 2 = 40/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
27/6 = 27 × 7/6 × 7 = 189/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 40/42 < 189/42 or 20/21 < 27/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/21 and 27/6 20/21 and 54/6 20/42 and 27/6 20/21 and 27/12 60/21 and 27/6 20/21 and 81/6 20/63 and 27/6 20/21 and 27/18 20/21 and 27/30 20/21 and 27/42