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Add 12/15 and 8/18

12/15 + 8/18 is 56/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    12/15 = 12 × 6/15 × 6 = 72/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    8/18 = 8 × 5/18 × 5 = 40/90
  4. Add the two fractions:
    72/90 + 40/90 = 72 + 40/90 = 112/90
  5. After reducing the fraction, the answer is 56/45
  6. In mixed form: 111/45

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