Subtract 81/14 from 27/72
1st number: 27/72, 2nd number: 5 11/14
27/72 - 81/14 is -303/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
27/72 = 27 × 7/72 × 7 = 189/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
81/14 = 81 × 36/14 × 36 = 2916/504 - Subtract the two like fractions:
189/504 - 2916/504 = 189 - 2916/504 = -2727/504 - After reducing the fraction, the answer is -303/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72-81/14 27/72-81/28 81/72-81/14 27/72-81/42 27/72-81/70 27/72-81/98