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Add 1/20 and 4/45

1/20 + 4/45 is 5/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 45 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    1/20 = 1 × 9/20 × 9 = 9/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    4/45 = 4 × 4/45 × 4 = 16/180
  4. Add the two fractions:
    9/180 + 16/180 = 9 + 16/180 = 25/180
  5. After reducing the fraction, the answer is 5/36

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