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Add 18/20 and 3/4

18/20 + 3/4 is 33/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 4 is 20
  2. For the 1st fraction, since 20 × 1 = 20,
    18/20 = 18 × 1/20 × 1 = 18/20
  3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
    3/4 = 3 × 5/4 × 5 = 15/20
  4. Add the two fractions:
    18/20 + 15/20 = 18 + 15/20 = 33/20
  5. In mixed form: 113/20

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