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Add 18/4 and 20/9

1st number: 4 2/4, 2nd number: 2 2/9

18/4 + 20/9 is 121/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 9 is 36
  2. For the 1st fraction, since 4 × 9 = 36,
    18/4 = 18 × 9/4 × 9 = 162/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    20/9 = 20 × 4/9 × 4 = 80/36
  4. Add the two fractions:
    162/36 + 80/36 = 162 + 80/36 = 242/36
  5. After reducing the fraction, the answer is 121/18
  6. In mixed form: 613/18

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