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Add 5/20 and 3/15

5/20 + 3/15 is 9/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 15 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    5/20 = 5 × 3/20 × 3 = 15/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    3/15 = 3 × 4/15 × 4 = 12/60
  4. Add the two like fractions:
    15/60 + 12/60 = 15 + 12/60 = 27/60
  5. 27/60 simplified gives 9/20
  6. So, 5/20 + 3/15 = 9/20

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