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Add 12/30 and 4/90

12/30 + 4/90 is 4/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 90 is 90
  2. For the 1st fraction, since 30 × 3 = 90,
    12/30 = 12 × 3/30 × 3 = 36/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    4/90 = 4 × 1/90 × 1 = 4/90
  4. Add the two fractions:
    36/90 + 4/90 = 36 + 4/90 = 40/90
  5. After reducing the fraction, the answer is 4/9

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