Answers

Add 56/63 and 15/81

56/63 + 15/81 is 29/27.

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,
   56/63 = 56 × 9/63 × 9 = 504/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   15/81 = 15 × 7/81 × 7 = 105/567
4. Add the two like fractions:
   504/567 + 105/567 = 504 + 105/567 = 609/567
5. 609/567 simplified gives 29/27
6. So, 56/63 + 15/81 = 29/27
   In mixed form: 12/27

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