Answers

Add 1/81 and 15/63

1/81 + 15/63 is 142/567.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 63 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 81 × 7 = 567,
   1/81 = 1 × 7/81 × 7 = 7/567
3. Likewise, for the 2nd fraction, since 63 × 9 = 567,
   15/63 = 15 × 9/63 × 9 = 135/567
4. Add the two like fractions:
   7/567 + 135/567 = 7 + 135/567 = 142/567
5. So, 1/81 + 15/63 = 142/567

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