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Add 45/12 and 15/84

1st number: 3 9/12, 2nd number: 15/84

45/12 + 15/84 is 55/14.

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,
    45/12 = 45 × 7/12 × 7 = 315/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    15/84 = 15 × 1/84 × 1 = 15/84
  4. Add the two like fractions:
    315/84 + 15/84 = 315 + 15/84 = 330/84
  5. 330/84 simplified gives 55/14
  6. So, 45/12 + 15/84 = 55/14
    In mixed form: 313/14

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