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Add 15/54 and 28/63

15/54 + 28/63 is 13/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 63 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    15/54 = 15 × 7/54 × 7 = 105/378
  3. Likewise, for the 2nd fraction, since 63 × 6 = 378,
    28/63 = 28 × 6/63 × 6 = 168/378
  4. Add the two like fractions:
    105/378 + 168/378 = 105 + 168/378 = 273/378
  5. 273/378 simplified gives 13/18
  6. So, 15/54 + 28/63 = 13/18

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