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Add 15/28 and 28/72

15/28 + 28/72 is 233/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 28 × 18 = 504,
    15/28 = 15 × 18/28 × 18 = 270/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    28/72 = 28 × 7/72 × 7 = 196/504
  4. Add the two like fractions:
    270/504 + 196/504 = 270 + 196/504 = 466/504
  5. 466/504 simplified gives 233/252
  6. So, 15/28 + 28/72 = 233/252

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