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Add 1/21 and 5/7

1/21 + 5/7 is 16/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 21 × 1 = 21,
    1/21 = 1 × 1/21 × 1 = 1/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    5/7 = 5 × 3/7 × 3 = 15/21
  4. Add the two like fractions:
    1/21 + 15/21 = 1 + 15/21 = 16/21
  5. So, 1/21 + 5/7 = 16/21

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