Answers

Add 84/63 and 18/81

1^st number: 1 21/63, 2^nd number: 18/81

84/63 + 18/81 is 14/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 81 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 63 × 9 = 567,
   84/63 = 84 × 9/63 × 9 = 756/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   18/81 = 18 × 7/81 × 7 = 126/567
4. Add the two like fractions:
   756/567 + 126/567 = 756 + 126/567 = 882/567
5. 882/567 simplified gives 14/9
6. So, 84/63 + 18/81 = 14/9
   In mixed form: 15/9

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