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Add 70/84 and 16/80

70/84 + 16/80 is 31/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 84 × 20 = 1680,
    70/84 = 70 × 20/84 × 20 = 1400/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    16/80 = 16 × 21/80 × 21 = 336/1680
  4. Add the two like fractions:
    1400/1680 + 336/1680 = 1400 + 336/1680 = 1736/1680
  5. 1736/1680 simplified gives 31/30
  6. So, 70/84 + 16/80 = 31/30
    In mixed form: 11/30

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