Subtract 27/14 from 20/81
1st number: 20/81, 2nd number: 1 13/14
20/81 - 27/14 is -1907/1134.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 14 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 81 × 14 = 1134,
20/81 = 20 × 14/81 × 14 = 280/1134 - Likewise, for the 2nd fraction, since 14 × 81 = 1134,
27/14 = 27 × 81/14 × 81 = 2187/1134 - Subtract the two like fractions:
280/1134 - 2187/1134 = 280 - 2187/1134 = -1907/1134
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/81-27/14 20/81-54/14 20/81-27/28 60/81-27/14 20/81-81/14 20/81-27/42 20/81-27/70 20/81-27/98