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Add 28/42 and 3/12

28/42 + 3/12 is 11/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    28/42 = 28 × 2/42 × 2 = 56/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    3/12 = 3 × 7/12 × 7 = 21/84
  4. Add the two like fractions:
    56/84 + 21/84 = 56 + 21/84 = 77/84
  5. 77/84 simplified gives 11/12
  6. So, 28/42 + 3/12 = 11/12

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