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Add 20/28 and 28/30

20/28 + 28/30 is 173/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 30 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 28 × 15 = 420,
    20/28 = 20 × 15/28 × 15 = 300/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    28/30 = 28 × 14/30 × 14 = 392/420
  4. Add the two like fractions:
    300/420 + 392/420 = 300 + 392/420 = 692/420
  5. 692/420 simplified gives 173/105
  6. So, 20/28 + 28/30 = 173/105
    In mixed form: 168/105

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