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Add 28/15 and 12/40

1st number: 1 13/15, 2nd number: 12/40

28/15 + 12/40 is 13/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    28/15 = 28 × 8/15 × 8 = 224/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    12/40 = 12 × 3/40 × 3 = 36/120
  4. Add the two like fractions:
    224/120 + 36/120 = 224 + 36/120 = 260/120
  5. 260/120 simplified gives 13/6
  6. So, 28/15 + 12/40 = 13/6
    In mixed form: 21/6

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