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Add 20/36 and 1/81

20/36 + 1/81 is 46/81.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 81 is 324
  2. For the 1st fraction, since 36 × 9 = 324,
    20/36 = 20 × 9/36 × 9 = 180/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    1/81 = 1 × 4/81 × 4 = 4/324
  4. Add the two fractions:
    180/324 + 4/324 = 180 + 4/324 = 184/324
  5. 184/324 simplified gives 46/81
  6. So, 20/36 + 1/81 = 46/81

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