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Add 8/12 and 21/36

8/12 + 21/36 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 36 is 36
  2. For the 1st fraction, since 12 × 3 = 36,
    8/12 = 8 × 3/12 × 3 = 24/36
  3. Likewise, for the 2nd fraction, since 36 × 1 = 36,
    21/36 = 21 × 1/36 × 1 = 21/36
  4. Add the two fractions:
    24/36 + 21/36 = 24 + 21/36 = 45/36
  5. 45/36 simplified gives 5/4
  6. So, 8/12 + 21/36 = 5/4
    In mixed form: 11/4

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