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Add 4/9 and 15/20

4/9 + 15/20 is 43/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180
  2. For the 1st fraction, since 9 × 20 = 180,
    4/9 = 4 × 20/9 × 20 = 80/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    15/20 = 15 × 9/20 × 9 = 135/180
  4. Add the two fractions:
    80/180 + 135/180 = 80 + 135/180 = 215/180
  5. 215/180 simplified gives 43/36
  6. So, 4/9 + 15/20 = 43/36
    In mixed form: 17/36

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