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Add 15/3 and 3/12

1st number: 5 0/3, 2nd number: 3/12

15/3 + 3/12 is 21/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 12 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 3 × 4 = 12,
    15/3 = 15 × 4/3 × 4 = 60/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    3/12 = 3 × 1/12 × 1 = 3/12
  4. Add the two like fractions:
    60/12 + 3/12 = 60 + 3/12 = 63/12
  5. 63/12 simplified gives 21/4
  6. So, 15/3 + 3/12 = 21/4
    In mixed form: 51/4

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