Answers

Add 84/81 and 6/20

1^st number: 1 3/81, 2^nd number: 6/20

84/81 + 6/20 is 361/270.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 20 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 81 × 20 = 1620,
   84/81 = 84 × 20/81 × 20 = 1680/1620
3. Likewise, for the 2nd fraction, since 20 × 81 = 1620,
   6/20 = 6 × 81/20 × 81 = 486/1620
4. Add the two like fractions:
   1680/1620 + 486/1620 = 1680 + 486/1620 = 2166/1620
5. 2166/1620 simplified gives 361/270
6. So, 84/81 + 6/20 = 361/270
   In mixed form: 191/270

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