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Add 15/84 and 6/42

15/84 + 6/42 is 9/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 42 is 84
  2. For the 1st fraction, since 84 × 1 = 84,
    15/84 = 15 × 1/84 × 1 = 15/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    6/42 = 6 × 2/42 × 2 = 12/84
  4. Add the two fractions:
    15/84 + 12/84 = 15 + 12/84 = 27/84
  5. 27/84 simplified gives 9/28
  6. So, 15/84 + 6/42 = 9/28

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