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Add 20/81 and 12/64

20/81 + 12/64 is 563/1296.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 64 is 5184

    Next, find the equivalent fraction of both fractional numbers with denominator 5184
  2. For the 1st fraction, since 81 × 64 = 5184,
    20/81 = 20 × 64/81 × 64 = 1280/5184
  3. Likewise, for the 2nd fraction, since 64 × 81 = 5184,
    12/64 = 12 × 81/64 × 81 = 972/5184
  4. Add the two like fractions:
    1280/5184 + 972/5184 = 1280 + 972/5184 = 2252/5184
  5. 2252/5184 simplified gives 563/1296
  6. So, 20/81 + 12/64 = 563/1296

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