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Add 21/12 and 3/16

1st number: 1 9/12, 2nd number: 3/16

21/12 + 3/16 is 31/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 16 is 48

    Next, find the equivalent fraction of both fractional numbers with denominator 48
  2. For the 1st fraction, since 12 × 4 = 48,
    21/12 = 21 × 4/12 × 4 = 84/48
  3. Likewise, for the 2nd fraction, since 16 × 3 = 48,
    3/16 = 3 × 3/16 × 3 = 9/48
  4. Add the two like fractions:
    84/48 + 9/48 = 84 + 9/48 = 93/48
  5. 93/48 simplified gives 31/16
  6. So, 21/12 + 3/16 = 31/16
    In mixed form: 115/16

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