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Add 7/20 and 3/12

7/20 + 3/12 is 3/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    7/20 = 7 × 3/20 × 3 = 21/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    3/12 = 3 × 5/12 × 5 = 15/60
  4. Add the two like fractions:
    21/60 + 15/60 = 21 + 15/60 = 36/60
  5. 36/60 simplified gives 3/5
  6. So, 7/20 + 3/12 = 3/5

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