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Add 27/20 and 27/28

1st number: 1 7/20, 2nd number: 27/28

27/20 + 27/28 is 81/35.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    27/20 = 27 × 7/20 × 7 = 189/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    27/28 = 27 × 5/28 × 5 = 135/140
  4. Add the two like fractions:
    189/140 + 135/140 = 189 + 135/140 = 324/140
  5. 324/140 simplified gives 81/35
  6. So, 27/20 + 27/28 = 81/35
    In mixed form: 211/35

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