Answers

Add 15/63 and 10/81

15/63 + 10/81 is 205/567.

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,
   15/63 = 15 × 9/63 × 9 = 135/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   10/81 = 10 × 7/81 × 7 = 70/567
4. Add the two like fractions:
   135/567 + 70/567 = 135 + 70/567 = 205/567
5. So, 15/63 + 10/81 = 205/567

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