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Add 63/15 and 18/28

1st number: 4 3/15, 2nd number: 18/28

63/15 + 18/28 is 339/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 28 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    63/15 = 63 × 28/15 × 28 = 1764/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    18/28 = 18 × 15/28 × 15 = 270/420
  4. Add the two like fractions:
    1764/420 + 270/420 = 1764 + 270/420 = 2034/420
  5. 2034/420 simplified gives 339/70
  6. So, 63/15 + 18/28 = 339/70
    In mixed form: 459/70

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