Subtract 81/4 from 10/27
1st number: 10/27, 2nd number: 20 1/4
10/27 - 81/4 is -2147/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 4 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
10/27 = 10 × 4/27 × 4 = 40/108 - Likewise, for the 2nd fraction, since 4 × 27 = 108,
81/4 = 81 × 27/4 × 27 = 2187/108 - Subtract the two like fractions:
40/108 - 2187/108 = 40 - 2187/108 = -2147/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/27-81/4 10/54-81/4 10/27-81/8 30/27-81/4 10/81-81/4 10/27-81/12 50/27-81/4 10/27-81/20 70/27-81/4 10/27-81/28