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Add 5/15 and 5/20

5/15 + 5/20 is 7/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    5/15 = 5 × 4/15 × 4 = 20/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    5/20 = 5 × 3/20 × 3 = 15/60
  4. Add the two fractions:
    20/60 + 15/60 = 20 + 15/60 = 35/60
  5. After reducing the fraction, the answer is 7/12

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