Add 3/81 and 3/4
3/81 + 3/4 is 85/108.
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,
3/81 = 3 × 4/81 × 4 = 12/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
3/4 = 3 × 81/4 × 81 = 243/324 - Add the two like fractions:
12/324 + 243/324 = 12 + 243/324 = 255/324 - 255/324 simplified gives 85/108
- So, 3/81 + 3/4 = 85/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/81+3/4 3/81+6/4 3/81+3/8 9/81+3/4 3/81+9/4 3/81+3/12 15/81+3/4 3/81+15/4 3/81+3/20 21/81+3/4 3/81+21/4 3/81+3/28