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Add 1/9 and 18/20

1/9 + 18/20 is 91/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 9 × 20 = 180,
    1/9 = 1 × 20/9 × 20 = 20/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    18/20 = 18 × 9/20 × 9 = 162/180
  4. Add the two like fractions:
    20/180 + 162/180 = 20 + 162/180 = 182/180
  5. 182/180 simplified gives 91/90
  6. So, 1/9 + 18/20 = 91/90
    In mixed form: 11/90

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