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Add 4/42 and 7/15

4/42 + 7/15 is 59/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 15 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    4/42 = 4 × 5/42 × 5 = 20/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    7/15 = 7 × 14/15 × 14 = 98/210
  4. Add the two fractions:
    20/210 + 98/210 = 20 + 98/210 = 118/210
  5. After reducing the fraction, the answer is 59/105

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