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Add 9/18 and 42/45

9/18 + 42/45 is 43/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    9/18 = 9 × 5/18 × 5 = 45/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    42/45 = 42 × 2/45 × 2 = 84/90
  4. Add the two like fractions:
    45/90 + 84/90 = 45 + 84/90 = 129/90
  5. 129/90 simplified gives 43/30
  6. So, 9/18 + 42/45 = 43/30
    In mixed form: 113/30

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