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Add 42/12 and 5/81

1st number: 3 6/12, 2nd number: 5/81

42/12 + 5/81 is 577/162.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 81 is 324
  2. For the 1st fraction, since 12 × 27 = 324,
    42/12 = 42 × 27/12 × 27 = 1134/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    5/81 = 5 × 4/81 × 4 = 20/324
  4. Add the two fractions:
    1134/324 + 20/324 = 1134 + 20/324 = 1154/324
  5. After reducing the fraction, the answer is 577/162
  6. In mixed form: 391/162

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