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Add 20/42 and 10/84

20/42 + 10/84 is 25/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 84 is 84
  2. For the 1st fraction, since 42 × 2 = 84,
    20/42 = 20 × 2/42 × 2 = 40/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    10/84 = 10 × 1/84 × 1 = 10/84
  4. Add the two fractions:
    40/84 + 10/84 = 40 + 10/84 = 50/84
  5. After reducing the fraction, the answer is 25/42

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