Compare 70/27 and 7/21
1st number: 2 16/27, 2nd number: 7/21
70/27 is greater than 7/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
70/27 = 70 × 7/27 × 7 = 490/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
7/21 = 7 × 9/21 × 9 = 63/189 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 490/189 > 63/189 or 70/27 > 7/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27 and 14/21 70/54 and 7/21 70/27 and 7/42 70/81 and 7/21 70/27 and 7/63 70/27 and 35/21 70/27 and 49/21