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Add 21/3 and 27/4

1st number: 7 0/3, 2nd number: 6 3/4

21/3 + 27/4 is 55/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 4 is 12
  2. For the 1st fraction, since 3 × 4 = 12,
    21/3 = 21 × 4/3 × 4 = 84/12
  3. Likewise, for the 2nd fraction, since 4 × 3 = 12,
    27/4 = 27 × 3/4 × 3 = 81/12
  4. Add the two fractions:
    84/12 + 81/12 = 84 + 81/12 = 165/12
  5. 165/12 simplified gives 55/4
  6. So, 21/3 + 27/4 = 55/4
    In mixed form: 133/4

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