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Add 15/84 and 1/70

15/84 + 1/70 is 27/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    15/84 = 15 × 5/84 × 5 = 75/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    1/70 = 1 × 6/70 × 6 = 6/420
  4. Add the two fractions:
    75/420 + 6/420 = 75 + 6/420 = 81/420
  5. After reducing the fraction, the answer is 27/140

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