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Add 72/18 and 9/30

1st number: 4 0/18, 2nd number: 9/30

72/18 + 9/30 is 43/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 30 is 90
  2. For the 1st fraction, since 18 × 5 = 90,
    72/18 = 72 × 5/18 × 5 = 360/90
  3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
    9/30 = 9 × 3/30 × 3 = 27/90
  4. Add the two fractions:
    360/90 + 27/90 = 360 + 27/90 = 387/90
  5. After reducing the fraction, the answer is 43/10
  6. In mixed form: 43/10

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