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Add 12/72 and 15/80

12/72 + 15/80 is 17/48.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 72 × 10 = 720,
    12/72 = 12 × 10/72 × 10 = 120/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    15/80 = 15 × 9/80 × 9 = 135/720
  4. Add the two like fractions:
    120/720 + 135/720 = 120 + 135/720 = 255/720
  5. 255/720 simplified gives 17/48
  6. So, 12/72 + 15/80 = 17/48

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