Add 6/81 and 9/21
6/81 + 9/21 is 95/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 21 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
6/81 = 6 × 7/81 × 7 = 42/567 - Likewise, for the 2nd fraction, since 21 × 27 = 567,
9/21 = 9 × 27/21 × 27 = 243/567 - Add the two like fractions:
42/567 + 243/567 = 42 + 243/567 = 285/567 - 285/567 simplified gives 95/189
- So, 6/81 + 9/21 = 95/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81+9/21 6/81+18/21 6/81+9/42 18/81+9/21 6/81+27/21 6/81+9/63 30/81+9/21 6/81+45/21 42/81+9/21 6/81+63/21