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Add 18/27 and 28/40

18/27 + 28/40 is 41/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 40 is 1080

    Next, find the equivalent fraction of both fractional numbers with denominator 1080
  2. For the 1st fraction, since 27 × 40 = 1080,
    18/27 = 18 × 40/27 × 40 = 720/1080
  3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
    28/40 = 28 × 27/40 × 27 = 756/1080
  4. Add the two like fractions:
    720/1080 + 756/1080 = 720 + 756/1080 = 1476/1080
  5. 1476/1080 simplified gives 41/30
  6. So, 18/27 + 28/40 = 41/30
    In mixed form: 111/30

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