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Add 1/2 and 21/12

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

1/2 + 21/12 is 9/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 12 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 2 × 6 = 12,
    1/2 = 1 × 6/2 × 6 = 6/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    21/12 = 21 × 1/12 × 1 = 21/12
  4. Add the two like fractions:
    6/12 + 21/12 = 6 + 21/12 = 27/12
  5. 27/12 simplified gives 9/4
  6. So, 1/2 + 21/12 = 9/4
    In mixed form: 21/4

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