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Add 28/30 and 90/18

1st number: 28/30, 2nd number: 5 0/18

28/30 + 90/18 is 89/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 30 × 3 = 90,
    28/30 = 28 × 3/30 × 3 = 84/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    90/18 = 90 × 5/18 × 5 = 450/90
  4. Add the two like fractions:
    84/90 + 450/90 = 84 + 450/90 = 534/90
  5. 534/90 simplified gives 89/15
  6. So, 28/30 + 90/18 = 89/15
    In mixed form: 514/15

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