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Add 7/18 and 28/80

7/18 + 28/80 is 133/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 18 × 40 = 720,
    7/18 = 7 × 40/18 × 40 = 280/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    28/80 = 28 × 9/80 × 9 = 252/720
  4. Add the two like fractions:
    280/720 + 252/720 = 280 + 252/720 = 532/720
  5. 532/720 simplified gives 133/180
  6. So, 7/18 + 28/80 = 133/180

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