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Add 12/28 and 20/54

12/28 + 20/54 is 151/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 54 is 756
  2. For the 1st fraction, since 28 × 27 = 756,
    12/28 = 12 × 27/28 × 27 = 324/756
  3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
    20/54 = 20 × 14/54 × 14 = 280/756
  4. Add the two fractions:
    324/756 + 280/756 = 324 + 280/756 = 604/756
  5. 604/756 simplified gives 151/189
  6. So, 12/28 + 20/54 = 151/189

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