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Add 12/7 and 3/81

1st number: 1 5/7, 2nd number: 3/81

12/7 + 3/81 is 331/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 81 is 567
  2. For the 1st fraction, since 7 × 81 = 567,
    12/7 = 12 × 81/7 × 81 = 972/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    3/81 = 3 × 7/81 × 7 = 21/567
  4. Add the two fractions:
    972/567 + 21/567 = 972 + 21/567 = 993/567
  5. After reducing the fraction, the answer is 331/189
  6. In mixed form: 1142/189

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