Answers

Add 6/21 and 7/81

6/21 + 7/81 is 211/567.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 21 × 27 = 567,
   6/21 = 6 × 27/21 × 27 = 162/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   7/81 = 7 × 7/81 × 7 = 49/567
4. Add the two like fractions:
   162/567 + 49/567 = 162 + 49/567 = 211/567
5. So, 6/21 + 7/81 = 211/567

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