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Add 30/12 and 42/90

1st number: 2 6/12, 2nd number: 42/90

30/12 + 42/90 is 89/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180
  2. For the 1st fraction, since 12 × 15 = 180,
    30/12 = 30 × 15/12 × 15 = 450/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    42/90 = 42 × 2/90 × 2 = 84/180
  4. Add the two fractions:
    450/180 + 84/180 = 450 + 84/180 = 534/180
  5. 534/180 simplified gives 89/30
  6. So, 30/12 + 42/90 = 89/30
    In mixed form: 229/30

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