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Add 18/9 and 30/20

1st number: 2 0/9, 2nd number: 1 10/20

18/9 + 30/20 is 7/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 9 × 20 = 180,
    18/9 = 18 × 20/9 × 20 = 360/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    30/20 = 30 × 9/20 × 9 = 270/180
  4. Add the two like fractions:
    360/180 + 270/180 = 360 + 270/180 = 630/180
  5. 630/180 simplified gives 7/2
  6. So, 18/9 + 30/20 = 7/2
    In mixed form: 31/2

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