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Add 3/20 and 25/28

3/20 + 25/28 is 73/70.

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,
    25/28 = 25 × 5/28 × 5 = 125/140
  4. Add the two like fractions:
    21/140 + 125/140 = 21 + 125/140 = 146/140
  5. 146/140 simplified gives 73/70
  6. So, 3/20 + 25/28 = 73/70
    In mixed form: 13/70

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