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Add 18/27 and 21/80

18/27 + 21/80 is 223/240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 80 is 2160

    Next, find the equivalent fraction of both fractional numbers with denominator 2160
  2. For the 1st fraction, since 27 × 80 = 2160,
    18/27 = 18 × 80/27 × 80 = 1440/2160
  3. Likewise, for the 2nd fraction, since 80 × 27 = 2160,
    21/80 = 21 × 27/80 × 27 = 567/2160
  4. Add the two like fractions:
    1440/2160 + 567/2160 = 1440 + 567/2160 = 2007/2160
  5. 2007/2160 simplified gives 223/240
  6. So, 18/27 + 21/80 = 223/240

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