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Add 4/42 and 3/9

4/42 + 3/9 is 3/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 9 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    4/42 = 4 × 3/42 × 3 = 12/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    3/9 = 3 × 14/9 × 14 = 42/126
  4. Add the two fractions:
    12/126 + 42/126 = 12 + 42/126 = 54/126
  5. After reducing the fraction, the answer is 3/7

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