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Add 20/42 and 2/7

20/42 + 2/7 is 16/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 7 is 42
  2. For the 1st fraction, since 42 × 1 = 42,
    20/42 = 20 × 1/42 × 1 = 20/42
  3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
    2/7 = 2 × 6/7 × 6 = 12/42
  4. Add the two fractions:
    20/42 + 12/42 = 20 + 12/42 = 32/42
  5. After reducing the fraction, the answer is 16/21

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