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Add 3/20 and 1/28

3/20 + 1/28 is 13/70.

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,
    3/20 = 3 × 7/20 × 7 = 21/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    1/28 = 1 × 5/28 × 5 = 5/140
  4. Add the two like fractions:
    21/140 + 5/140 = 21 + 5/140 = 26/140
  5. 26/140 simplified gives 13/70
  6. So, 3/20 + 1/28 = 13/70

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