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Add 70/75 and 72/80

70/75 + 72/80 is 11/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 80 is 1200

    Next, find the equivalent fraction of both fractional numbers with denominator 1200
  2. For the 1st fraction, since 75 × 16 = 1200,
    70/75 = 70 × 16/75 × 16 = 1120/1200
  3. Likewise, for the 2nd fraction, since 80 × 15 = 1200,
    72/80 = 72 × 15/80 × 15 = 1080/1200
  4. Add the two like fractions:
    1120/1200 + 1080/1200 = 1120 + 1080/1200 = 2200/1200
  5. 2200/1200 simplified gives 11/6
  6. So, 70/75 + 72/80 = 11/6
    In mixed form: 15/6

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