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Add 72/80 and 18/75

72/80 + 18/75 is 57/50.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1200
  2. For the 1st fraction, since 80 × 15 = 1200,
    72/80 = 72 × 15/80 × 15 = 1080/1200
  3. Likewise, for the 2nd fraction, since 75 × 16 = 1200,
    18/75 = 18 × 16/75 × 16 = 288/1200
  4. Add the two like fractions:
    1080/1200 + 288/1200 = 1080 + 288/1200 = 1368/1200
  5. 1368/1200 simplified gives 57/50
  6. So, 72/80 + 18/75 = 57/50
    In mixed form: 17/50

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