Subtract 27/21 from 14/36
1st number: 14/36, 2nd number: 1 6/21
14/36 - 27/21 is -113/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
14/36 = 14 × 7/36 × 7 = 98/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
27/21 = 27 × 12/21 × 12 = 324/252 - Subtract the two like fractions:
98/252 - 324/252 = 98 - 324/252 = -226/252 - After reducing the fraction, the answer is -113/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/36-27/21 14/36-54/21 14/72-27/21 14/36-27/42 42/36-27/21 14/36-81/21 14/36-27/63 70/36-27/21 98/36-27/21