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Add 4/18 and 12/20

4/18 + 12/20 is 37/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180
  2. For the 1st fraction, since 18 × 10 = 180,
    4/18 = 4 × 10/18 × 10 = 40/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    12/20 = 12 × 9/20 × 9 = 108/180
  4. Add the two fractions:
    40/180 + 108/180 = 40 + 108/180 = 148/180
  5. After reducing the fraction, the answer is 37/45

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