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Add 4/12 and 6/90

4/12 + 6/90 is 2/5.

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,
    4/12 = 4 × 15/12 × 15 = 60/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    6/90 = 6 × 2/90 × 2 = 12/180
  4. Add the two fractions:
    60/180 + 12/180 = 60 + 12/180 = 72/180
  5. After reducing the fraction, the answer is 2/5

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