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Add 12/42 and 5/27

12/42 + 5/27 is 89/189.

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,
    12/42 = 12 × 9/42 × 9 = 108/378
  3. Likewise, for the 2nd fraction, since 27 × 14 = 378,
    5/27 = 5 × 14/27 × 14 = 70/378
  4. Add the two fractions:
    108/378 + 70/378 = 108 + 70/378 = 178/378
  5. After reducing the fraction, the answer is 89/189

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