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Add 2/21 and 2/7

2/21 + 2/7 is 8/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21
  2. For the 1st fraction, since 21 × 1 = 21,
    2/21 = 2 × 1/21 × 1 = 2/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    2/7 = 2 × 3/7 × 3 = 6/21
  4. Add the two fractions:
    2/21 + 6/21 = 2 + 6/21 = 8/21

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