Subtract 24/27 from 49/21
1st number: 2 7/21, 2nd number: 24/27
49/21 - 24/27 is 13/9.
Steps for subtracting 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,
49/21 = 49 × 9/21 × 9 = 441/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
24/27 = 24 × 7/27 × 7 = 168/189 - Subtract the two like fractions:
441/189 - 168/189 = 441 - 168/189 = 273/189 - After reducing the fraction, the answer is 13/9
- In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/21-24/27 49/21-48/27 49/42-24/27 49/21-24/54 49/21-72/27 49/63-24/27 49/21-24/81