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Add 28/30 and 90/12

1st number: 28/30, 2nd number: 7 6/12

28/30 + 90/12 is 253/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    28/30 = 28 × 2/30 × 2 = 56/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    90/12 = 90 × 5/12 × 5 = 450/60
  4. Add the two like fractions:
    56/60 + 450/60 = 56 + 450/60 = 506/60
  5. 506/60 simplified gives 253/30
  6. So, 28/30 + 90/12 = 253/30
    In mixed form: 813/30

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