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Add 4/20 and 1/90

4/20 + 1/90 is 19/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    4/20 = 4 × 9/20 × 9 = 36/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    1/90 = 1 × 2/90 × 2 = 2/180
  4. Add the two fractions:
    36/180 + 2/180 = 36 + 2/180 = 38/180
  5. After reducing the fraction, the answer is 19/90

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