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Add 18/28 and 9/30

18/28 + 9/30 is 33/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 30 is 420
  2. For the 1st fraction, since 28 × 15 = 420,
    18/28 = 18 × 15/28 × 15 = 270/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    9/30 = 9 × 14/30 × 14 = 126/420
  4. Add the two fractions:
    270/420 + 126/420 = 270 + 126/420 = 396/420
  5. After reducing the fraction, the answer is 33/35

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