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Add 18/40 and 28/60

18/40 + 28/60 is 11/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 60 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    18/40 = 18 × 3/40 × 3 = 54/120
  3. Likewise, for the 2nd fraction, since 60 × 2 = 120,
    28/60 = 28 × 2/60 × 2 = 56/120
  4. Add the two fractions:
    54/120 + 56/120 = 54 + 56/120 = 110/120
  5. After reducing the fraction, the answer is 11/12

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