Compare 15/21 and 2/27
15/21 is greater than 2/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
15/21 = 15 × 9/21 × 9 = 135/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
2/27 = 2 × 7/27 × 7 = 14/189 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 135/189 > 14/189 or 15/21 > 2/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/21 and 2/27 15/21 and 4/27 15/42 and 2/27 15/21 and 2/54 45/21 and 2/27 15/21 and 6/27 15/63 and 2/27 15/21 and 2/81 75/21 and 2/27 15/21 and 10/27 15/21 and 14/27