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Add 80/84 and 15/70

80/84 + 15/70 is 7/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    80/84 = 80 × 5/84 × 5 = 400/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    15/70 = 15 × 6/70 × 6 = 90/420
  4. Add the two like fractions:
    400/420 + 90/420 = 400 + 90/420 = 490/420
  5. 490/420 simplified gives 7/6
  6. So, 80/84 + 15/70 = 7/6
    In mixed form: 11/6

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