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Add 70/80 and 30/84

70/80 + 30/84 is 69/56.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 80 × 21 = 1680,
    70/80 = 70 × 21/80 × 21 = 1470/1680
  3. Likewise, for the 2nd fraction, since 84 × 20 = 1680,
    30/84 = 30 × 20/84 × 20 = 600/1680
  4. Add the two like fractions:
    1470/1680 + 600/1680 = 1470 + 600/1680 = 2070/1680
  5. 2070/1680 simplified gives 69/56
  6. So, 70/80 + 30/84 = 69/56
    In mixed form: 113/56

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