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Add 8/12 and 15/35

8/12 + 15/35 is 23/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 35 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 12 × 35 = 420,
    8/12 = 8 × 35/12 × 35 = 280/420
  3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
    15/35 = 15 × 12/35 × 12 = 180/420
  4. Add the two like fractions:
    280/420 + 180/420 = 280 + 180/420 = 460/420
  5. 460/420 simplified gives 23/21
  6. So, 8/12 + 15/35 = 23/21
    In mixed form: 12/21

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