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Add 70/80 and 1/5

70/80 + 1/5 is 43/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 5 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    70/80 = 70 × 1/80 × 1 = 70/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    1/5 = 1 × 16/5 × 16 = 16/80
  4. Add the two like fractions:
    70/80 + 16/80 = 70 + 16/80 = 86/80
  5. 86/80 simplified gives 43/40
  6. So, 70/80 + 1/5 = 43/40
    In mixed form: 13/40

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