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Add 8/15 and 63/84

8/15 + 63/84 is 77/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    8/15 = 8 × 28/15 × 28 = 224/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    63/84 = 63 × 5/84 × 5 = 315/420
  4. Add the two like fractions:
    224/420 + 315/420 = 224 + 315/420 = 539/420
  5. 539/420 simplified gives 77/60
  6. So, 8/15 + 63/84 = 77/60
    In mixed form: 117/60

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