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Add 28/80 and 18/9

1st number: 28/80, 2nd number: 2 0/9

28/80 + 18/9 is 47/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 9 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    28/80 = 28 × 9/80 × 9 = 252/720
  3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
    18/9 = 18 × 80/9 × 80 = 1440/720
  4. Add the two like fractions:
    252/720 + 1440/720 = 252 + 1440/720 = 1692/720
  5. 1692/720 simplified gives 47/20
  6. So, 28/80 + 18/9 = 47/20
    In mixed form: 27/20

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