Answers

Add 84/7 and 63/81

1^st number: 12 0/7, 2^nd number: 63/81

84/7 + 63/81 is 115/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 7 × 81 = 567,
   84/7 = 84 × 81/7 × 81 = 6804/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   63/81 = 63 × 7/81 × 7 = 441/567
4. Add the two like fractions:
   6804/567 + 441/567 = 6804 + 441/567 = 7245/567
5. 7245/567 simplified gives 115/9
6. So, 84/7 + 63/81 = 115/9
   In mixed form: 127/9

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