Subtract 6/8 from 14/81
14/81 - 6/8 is -187/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
14/81 = 14 × 8/81 × 8 = 112/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
6/8 = 6 × 81/8 × 81 = 486/648 - Subtract the two like fractions:
112/648 - 486/648 = 112 - 486/648 = -374/648 - After reducing the fraction, the answer is -187/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/81-6/8 14/81-12/8 14/81-6/16 42/81-6/8 14/81-18/8 14/81-6/24 70/81-6/8 14/81-30/8 14/81-6/40 98/81-6/8 14/81-42/8 14/81-6/56