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Add 18/28 and 3/40

18/28 + 3/40 is 201/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280
  2. For the 1st fraction, since 28 × 10 = 280,
    18/28 = 18 × 10/28 × 10 = 180/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    3/40 = 3 × 7/40 × 7 = 21/280
  4. Add the two fractions:
    180/280 + 21/280 = 180 + 21/280 = 201/280

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