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Add 4/21 and 12/36

4/21 + 12/36 is 11/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 21 × 12 = 252,
    4/21 = 4 × 12/21 × 12 = 48/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    12/36 = 12 × 7/36 × 7 = 84/252
  4. Add the two like fractions:
    48/252 + 84/252 = 48 + 84/252 = 132/252
  5. 132/252 simplified gives 11/21
  6. So, 4/21 + 12/36 = 11/21

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