Compare 21/7 and 70/27
1st number: 3 0/7, 2nd number: 2 16/27
21/7 is greater than 70/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
21/7 = 21 × 27/7 × 27 = 567/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
70/27 = 70 × 7/27 × 7 = 490/189 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/189 > 490/189 or 21/7 > 70/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/7 and 70/27 21/14 and 70/27 21/7 and 70/54 63/7 and 70/27 21/7 and 70/81 21/35 and 70/27 21/49 and 70/27