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Add 18/20 and 9/30

18/20 + 9/30 is 6/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 30 is 60
  2. For the 1st fraction, since 20 × 3 = 60,
    18/20 = 18 × 3/20 × 3 = 54/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    9/30 = 9 × 2/30 × 2 = 18/60
  4. Add the two fractions:
    54/60 + 18/60 = 54 + 18/60 = 72/60
  5. After reducing the fraction, the answer is 6/5
  6. In mixed form: 11/5

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