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Add 21/42 and 1/3

21/42 + 1/3 is 5/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 3 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 42 × 1 = 42,
    21/42 = 21 × 1/42 × 1 = 21/42
  3. Likewise, for the 2nd fraction, since 3 × 14 = 42,
    1/3 = 1 × 14/3 × 14 = 14/42
  4. Add the two like fractions:
    21/42 + 14/42 = 21 + 14/42 = 35/42
  5. 35/42 simplified gives 5/6
  6. So, 21/42 + 1/3 = 5/6

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