Subtract 3/81 from 14/36
14/36 - 3/81 is 19/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 36 × 9 = 324,
14/36 = 14 × 9/36 × 9 = 126/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
3/81 = 3 × 4/81 × 4 = 12/324 - Subtract the two like fractions:
126/324 - 12/324 = 126 - 12/324 = 114/324 - After reducing the fraction, the answer is 19/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/36-3/81 14/36-6/81 14/72-3/81 42/36-3/81 14/36-9/81 70/36-3/81 14/36-15/81 98/36-3/81 14/36-21/81