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Add 12/42 and 5/9

12/42 + 5/9 is 53/63.

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,
    12/42 = 12 × 3/42 × 3 = 36/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    5/9 = 5 × 14/9 × 14 = 70/126
  4. Add the two fractions:
    36/126 + 70/126 = 36 + 70/126 = 106/126
  5. 106/126 simplified gives 53/63
  6. So, 12/42 + 5/9 = 53/63

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