Add 6/21 and 5/81
6/21 + 5/81 is 197/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
6/21 = 6 × 27/21 × 27 = 162/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
5/81 = 5 × 7/81 × 7 = 35/567 - Add the two like fractions:
162/567 + 35/567 = 162 + 35/567 = 197/567 - So, 6/21 + 5/81 = 197/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+5/81 6/21+10/81 6/42+5/81 18/21+5/81 6/21+15/81 6/63+5/81 30/21+5/81 6/21+25/81 42/21+5/81 6/21+35/81