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Add 20/15 and 12/8

1st number: 1 5/15, 2nd number: 1 4/8

20/15 + 12/8 is 17/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 8 is 120
  2. For the 1st fraction, since 15 × 8 = 120,
    20/15 = 20 × 8/15 × 8 = 160/120
  3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
    12/8 = 12 × 15/8 × 15 = 180/120
  4. Add the two fractions:
    160/120 + 180/120 = 160 + 180/120 = 340/120
  5. After reducing the fraction, the answer is 17/6
  6. In mixed form: 25/6

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