Add 1/81 and 27/4
1st number: 1/81, 2nd number: 6 3/4
1/81 + 27/4 is 2191/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
1/81 = 1 × 4/81 × 4 = 4/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
27/4 = 27 × 81/4 × 81 = 2187/324 - Add the two like fractions:
4/324 + 2187/324 = 4 + 2187/324 = 2191/324 - So, 1/81 + 27/4 = 2191/324
In mixed form: 6247/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81+27/4 1/81+54/4 1/81+27/8 3/81+27/4 1/81+81/4 1/81+27/12 5/81+27/4 1/81+27/20 7/81+27/4 1/81+27/28