Subtract 14/81 from 30/9
1st number: 3 3/9, 2nd number: 14/81
30/9 - 14/81 is 256/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
30/9 = 30 × 9/9 × 9 = 270/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
14/81 = 14 × 1/81 × 1 = 14/81 - Subtract the two like fractions:
270/81 - 14/81 = 270 - 14/81 = 256/81 - In mixed form: 313/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-14/81 30/9-28/81 30/18-14/81 90/9-14/81 30/9-42/81 30/27-14/81 30/9-70/81 30/45-14/81 30/9-98/81 30/63-14/81