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Add 15/28 and 20/36

15/28 + 20/36 is 275/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 28 × 9 = 252,
    15/28 = 15 × 9/28 × 9 = 135/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    20/36 = 20 × 7/36 × 7 = 140/252
  4. Add the two like fractions:
    135/252 + 140/252 = 135 + 140/252 = 275/252
  5. So, 15/28 + 20/36 = 275/252
    In mixed form: 123/252

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