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Add 3/12 and 45/84

3/12 + 45/84 is 11/14.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    3/12 = 3 × 7/12 × 7 = 21/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    45/84 = 45 × 1/84 × 1 = 45/84
  4. Add the two like fractions:
    21/84 + 45/84 = 21 + 45/84 = 66/84
  5. 66/84 simplified gives 11/14
  6. So, 3/12 + 45/84 = 11/14

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