Subtract 30/27 from 14/81
1st number: 14/81, 2nd number: 1 3/27
14/81 - 30/27 is -76/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 27 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 81 × 1 = 81,
14/81 = 14 × 1/81 × 1 = 14/81 - Likewise, for the 2nd fraction, since 27 × 3 = 81,
30/27 = 30 × 3/27 × 3 = 90/81 - Subtract the two like fractions:
14/81 - 90/81 = 14 - 90/81 = -76/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/81-30/27 14/81-60/27 14/81-30/54 42/81-30/27 14/81-90/27 14/81-30/81 70/81-30/27 98/81-30/27