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Add 3/90 and 1/20

3/90 + 1/20 is 1/12.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    3/90 = 3 × 2/90 × 2 = 6/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    1/20 = 1 × 9/20 × 9 = 9/180
  4. Add the two like fractions:
    6/180 + 9/180 = 6 + 9/180 = 15/180
  5. 15/180 simplified gives 1/12
  6. So, 3/90 + 1/20 = 1/12

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