Answers

Add 16/63 and 9/81

16/63 + 9/81 is 23/63.

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,
   16/63 = 16 × 9/63 × 9 = 144/567
3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
   9/81 = 9 × 7/81 × 7 = 63/567
4. Add the two like fractions:
   144/567 + 63/567 = 144 + 63/567 = 207/567
5. 207/567 simplified gives 23/63
6. So, 16/63 + 9/81 = 23/63

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