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Add 2/20 and 9/81

2/20 + 9/81 is 19/90.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1620
  2. For the 1st fraction, since 20 × 81 = 1620,
    2/20 = 2 × 81/20 × 81 = 162/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    9/81 = 9 × 20/81 × 20 = 180/1620
  4. Add the two like fractions:
    162/1620 + 180/1620 = 162 + 180/1620 = 342/1620
  5. 342/1620 simplified gives 19/90
  6. So, 2/20 + 9/81 = 19/90

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