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Add 3/20 and 4/45

3/20 + 4/45 is 43/180.

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,
    3/20 = 3 × 9/20 × 9 = 27/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    4/45 = 4 × 4/45 × 4 = 16/180
  4. Add the two fractions:
    27/180 + 16/180 = 27 + 16/180 = 43/180

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