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Add 21/3 and 81/36

1st number: 7 0/3, 2nd number: 2 9/36

21/3 + 81/36 is 37/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 36 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 3 × 12 = 36,
    21/3 = 21 × 12/3 × 12 = 252/36
  3. Likewise, for the 2nd fraction, since 36 × 1 = 36,
    81/36 = 81 × 1/36 × 1 = 81/36
  4. Add the two like fractions:
    252/36 + 81/36 = 252 + 81/36 = 333/36
  5. 333/36 simplified gives 37/4
  6. So, 21/3 + 81/36 = 37/4
    In mixed form: 91/4

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