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Add 16/63 and 3/81

16/63 + 3/81 is 55/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 81 is 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,
    3/81 = 3 × 7/81 × 7 = 21/567
  4. Add the two fractions:
    144/567 + 21/567 = 144 + 21/567 = 165/567
  5. After reducing the fraction, the answer is 55/189

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