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Add 10/20 and 27/28

10/20 + 27/28 is 41/28.

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,
    10/20 = 10 × 7/20 × 7 = 70/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    27/28 = 27 × 5/28 × 5 = 135/140
  4. Add the two like fractions:
    70/140 + 135/140 = 70 + 135/140 = 205/140
  5. 205/140 simplified gives 41/28
  6. So, 10/20 + 27/28 = 41/28
    In mixed form: 113/28

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