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Add 6/81 and 4/20

6/81 + 4/20 is 37/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 20 is 1620

    Next, find the equivalent fraction of both fractional numbers with denominator 1620
  2. For the 1st fraction, since 81 × 20 = 1620,
    6/81 = 6 × 20/81 × 20 = 120/1620
  3. Likewise, for the 2nd fraction, since 20 × 81 = 1620,
    4/20 = 4 × 81/20 × 81 = 324/1620
  4. Add the two like fractions:
    120/1620 + 324/1620 = 120 + 324/1620 = 444/1620
  5. 444/1620 simplified gives 37/135
  6. So, 6/81 + 4/20 = 37/135

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