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Add 9/18 and 30/40

9/18 + 30/40 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 18 × 20 = 360,
    9/18 = 9 × 20/18 × 20 = 180/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    30/40 = 30 × 9/40 × 9 = 270/360
  4. Add the two like fractions:
    180/360 + 270/360 = 180 + 270/360 = 450/360
  5. 450/360 simplified gives 5/4
  6. So, 9/18 + 30/40 = 5/4
    In mixed form: 11/4

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