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Add 8/15 and 20/28

8/15 + 20/28 is 131/105.

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,
    8/15 = 8 × 28/15 × 28 = 224/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    20/28 = 20 × 15/28 × 15 = 300/420
  4. Add the two like fractions:
    224/420 + 300/420 = 224 + 300/420 = 524/420
  5. 524/420 simplified gives 131/105
  6. So, 8/15 + 20/28 = 131/105
    In mixed form: 126/105

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