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Add 80/42 and 28/27

1st number: 1 38/42, 2nd number: 1 1/27

80/42 + 28/27 is 556/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 27 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    80/42 = 80 × 9/42 × 9 = 720/378
  3. Likewise, for the 2nd fraction, since 27 × 14 = 378,
    28/27 = 28 × 14/27 × 14 = 392/378
  4. Add the two fractions:
    720/378 + 392/378 = 720 + 392/378 = 1112/378
  5. After reducing the fraction, the answer is 556/189
  6. In mixed form: 2178/189

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