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Add 15/42 and 28/56

15/42 + 28/56 is 6/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 56 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 42 × 4 = 168,
    15/42 = 15 × 4/42 × 4 = 60/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    28/56 = 28 × 3/56 × 3 = 84/168
  4. Add the two like fractions:
    60/168 + 84/168 = 60 + 84/168 = 144/168
  5. 144/168 simplified gives 6/7
  6. So, 15/42 + 28/56 = 6/7

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