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Add 9/12 and 3/7

9/12 + 3/7 is 33/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 7 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    9/12 = 9 × 7/12 × 7 = 63/84
  3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
    3/7 = 3 × 12/7 × 12 = 36/84
  4. Add the two like fractions:
    63/84 + 36/84 = 63 + 36/84 = 99/84
  5. 99/84 simplified gives 33/28
  6. So, 9/12 + 3/7 = 33/28
    In mixed form: 15/28

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