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Add 36/21 and 27/12

1st number: 1 15/21, 2nd number: 2 3/12

36/21 + 27/12 is 111/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 12 is 84
  2. For the 1st fraction, since 21 × 4 = 84,
    36/21 = 36 × 4/21 × 4 = 144/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    27/12 = 27 × 7/12 × 7 = 189/84
  4. Add the two fractions:
    144/84 + 189/84 = 144 + 189/84 = 333/84
  5. 333/84 simplified gives 111/28
  6. So, 36/21 + 27/12 = 111/28
    In mixed form: 327/28

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