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Add 84/42 and 15/54

1st number: 2 0/42, 2nd number: 15/54

84/42 + 15/54 is 41/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    84/42 = 84 × 9/42 × 9 = 756/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    15/54 = 15 × 7/54 × 7 = 105/378
  4. Add the two fractions:
    756/378 + 105/378 = 756 + 105/378 = 861/378
  5. After reducing the fraction, the answer is 41/18
  6. In mixed form: 25/18

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