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Add 20/54 and 14/21

20/54 + 14/21 is 28/27.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    20/54 = 20 × 7/54 × 7 = 140/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    14/21 = 14 × 18/21 × 18 = 252/378
  4. Add the two like fractions:
    140/378 + 252/378 = 140 + 252/378 = 392/378
  5. 392/378 simplified gives 28/27
  6. So, 20/54 + 14/21 = 28/27
    In mixed form: 11/27

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