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Add 15/24 and 20/42

15/24 + 20/42 is 185/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 42 is 168
  2. For the 1st fraction, since 24 × 7 = 168,
    15/24 = 15 × 7/24 × 7 = 105/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    20/42 = 20 × 4/42 × 4 = 80/168
  4. Add the two fractions:
    105/168 + 80/168 = 105 + 80/168 = 185/168
  5. In mixed form: 117/168

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