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Add 16/20 and 9/90

16/20 + 9/90 is 9/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    16/20 = 16 × 9/20 × 9 = 144/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    9/90 = 9 × 2/90 × 2 = 18/180
  4. Add the two like fractions:
    144/180 + 18/180 = 144 + 18/180 = 162/180
  5. 162/180 simplified gives 9/10
  6. So, 16/20 + 9/90 = 9/10

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