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Add 8/21 and 1/7

8/21 + 1/7 is 11/21.

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,
    8/21 = 8 × 1/21 × 1 = 8/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    1/7 = 1 × 3/7 × 3 = 3/21
  4. Add the two fractions:
    8/21 + 3/21 = 8 + 3/21 = 11/21
  5. So, 8/21 + 1/7 = 11/21

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