Subtract 4/81 from 35/27
1st number: 1 8/27, 2nd number: 4/81
35/27 - 4/81 is 101/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 27 × 3 = 81,
35/27 = 35 × 3/27 × 3 = 105/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
4/81 = 4 × 1/81 × 1 = 4/81 - Subtract the two like fractions:
105/81 - 4/81 = 105 - 4/81 = 101/81 - In mixed form: 120/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/27-4/81 35/27-8/81 35/54-4/81 35/27-12/81 35/81-4/81 35/27-20/81 35/27-28/81