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Add 4/5 and 9/18

4/5 + 9/18 is 13/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 18 is 90
  2. For the 1st fraction, since 5 × 18 = 90,
    4/5 = 4 × 18/5 × 18 = 72/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    9/18 = 9 × 5/18 × 5 = 45/90
  4. Add the two fractions:
    72/90 + 45/90 = 72 + 45/90 = 117/90
  5. After reducing the fraction, the answer is 13/10
  6. In mixed form: 13/10

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