Subtract 15/81 from 14/15
14/15 - 15/81 is 101/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
14/15 = 14 × 27/15 × 27 = 378/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
15/81 = 15 × 5/81 × 5 = 75/405 - Subtract the two like fractions:
378/405 - 75/405 = 378 - 75/405 = 303/405 - After reducing the fraction, the answer is 101/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/15-15/81 14/15-30/81 14/30-15/81 42/15-15/81 14/15-45/81 14/45-15/81 70/15-15/81 14/15-75/81 14/75-15/81 98/15-15/81