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Add 15/80 and 30/72

15/80 + 30/72 is 29/48.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    15/80 = 15 × 9/80 × 9 = 135/720
  3. Likewise, for the 2nd fraction, since 72 × 10 = 720,
    30/72 = 30 × 10/72 × 10 = 300/720
  4. Add the two like fractions:
    135/720 + 300/720 = 135 + 300/720 = 435/720
  5. 435/720 simplified gives 29/48
  6. So, 15/80 + 30/72 = 29/48

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