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Add 12/56 and 12/81

12/56 + 12/81 is 137/378.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 81 is 4536

    Next, find the equivalent fraction of both fractional numbers with denominator 4536
  2. For the 1st fraction, since 56 × 81 = 4536,
    12/56 = 12 × 81/56 × 81 = 972/4536
  3. Likewise, for the 2nd fraction, since 81 × 56 = 4536,
    12/81 = 12 × 56/81 × 56 = 672/4536
  4. Add the two like fractions:
    972/4536 + 672/4536 = 972 + 672/4536 = 1644/4536
  5. 1644/4536 simplified gives 137/378
  6. So, 12/56 + 12/81 = 137/378

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