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Add 20/7 and 3/81

1st number: 2 6/7, 2nd number: 3/81

20/7 + 3/81 is 547/189.

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,
    20/7 = 20 × 81/7 × 81 = 1620/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    3/81 = 3 × 7/81 × 7 = 21/567
  4. Add the two fractions:
    1620/567 + 21/567 = 1620 + 21/567 = 1641/567
  5. After reducing the fraction, the answer is 547/189
  6. In mixed form: 2169/189

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