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Add 45/12 and 5/84

1st number: 3 9/12, 2nd number: 5/84

45/12 + 5/84 is 80/21.

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,
    5/84 = 5 × 1/84 × 1 = 5/84
  4. Add the two like fractions:
    315/84 + 5/84 = 315 + 5/84 = 320/84
  5. 320/84 simplified gives 80/21
  6. So, 45/12 + 5/84 = 80/21
    In mixed form: 317/21

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