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Add 28/15 and 9/20

1st number: 1 13/15, 2nd number: 9/20

28/15 + 9/20 is 139/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    28/15 = 28 × 4/15 × 4 = 112/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    9/20 = 9 × 3/20 × 3 = 27/60
  4. Add the two like fractions:
    112/60 + 27/60 = 112 + 27/60 = 139/60
  5. So, 28/15 + 9/20 = 139/60
    In mixed form: 219/60

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