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Add 7/42 and 1/21

7/42 + 1/21 is 3/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 42 × 1 = 42,
    7/42 = 7 × 1/42 × 1 = 7/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    1/21 = 1 × 2/21 × 2 = 2/42
  4. Add the two like fractions:
    7/42 + 2/42 = 7 + 2/42 = 9/42
  5. 9/42 simplified gives 3/14
  6. So, 7/42 + 1/21 = 3/14

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