Subtract 30/81 from 10/3
1st number: 3 1/3, 2nd number: 30/81
10/3 - 30/81 is 80/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
10/3 = 10 × 27/3 × 27 = 270/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
30/81 = 30 × 1/81 × 1 = 30/81 - Subtract the two like fractions:
270/81 - 30/81 = 270 - 30/81 = 240/81 - After reducing the fraction, the answer is 80/27
- In mixed form: 226/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/3-30/81 10/3-60/81 10/6-30/81 30/3-30/81 10/3-90/81 10/9-30/81 50/3-30/81 10/15-30/81 70/3-30/81 10/21-30/81