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Add 20/30 and 15/27

20/30 + 15/27 is 11/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 27 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 30 × 9 = 270,
    20/30 = 20 × 9/30 × 9 = 180/270
  3. Likewise, for the 2nd fraction, since 27 × 10 = 270,
    15/27 = 15 × 10/27 × 10 = 150/270
  4. Add the two like fractions:
    180/270 + 150/270 = 180 + 150/270 = 330/270
  5. 330/270 simplified gives 11/9
  6. So, 20/30 + 15/27 = 11/9
    In mixed form: 12/9

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