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Add 28/20 and 3/80

1st number: 1 8/20, 2nd number: 3/80

28/20 + 3/80 is 23/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    28/20 = 28 × 4/20 × 4 = 112/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    3/80 = 3 × 1/80 × 1 = 3/80
  4. Add the two like fractions:
    112/80 + 3/80 = 112 + 3/80 = 115/80
  5. 115/80 simplified gives 23/16
  6. So, 28/20 + 3/80 = 23/16
    In mixed form: 17/16

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