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Add 12/27 and 9/20

12/27 + 9/20 is 161/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 20 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 27 × 20 = 540,
    12/27 = 12 × 20/27 × 20 = 240/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    9/20 = 9 × 27/20 × 27 = 243/540
  4. Add the two like fractions:
    240/540 + 243/540 = 240 + 243/540 = 483/540
  5. 483/540 simplified gives 161/180
  6. So, 12/27 + 9/20 = 161/180

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