Add 6/81 and 3/5
6/81 + 3/5 is 91/135.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 5 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 81 × 5 = 405,
6/81 = 6 × 5/81 × 5 = 30/405 - Likewise, for the 2nd fraction, since 5 × 81 = 405,
3/5 = 3 × 81/5 × 81 = 243/405 - Add the two like fractions:
30/405 + 243/405 = 30 + 243/405 = 273/405 - 273/405 simplified gives 91/135
- So, 6/81 + 3/5 = 91/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81+3/5 6/81+6/5 6/81+3/10 18/81+3/5 6/81+9/5 6/81+3/15 30/81+3/5 6/81+15/5 6/81+3/25 42/81+3/5 6/81+21/5 6/81+3/35