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Add 27/28 and 3/20

27/28 + 3/20 is 39/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 28 × 5 = 140,
    27/28 = 27 × 5/28 × 5 = 135/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    3/20 = 3 × 7/20 × 7 = 21/140
  4. Add the two like fractions:
    135/140 + 21/140 = 135 + 21/140 = 156/140
  5. 156/140 simplified gives 39/35
  6. So, 27/28 + 3/20 = 39/35
    In mixed form: 14/35

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