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Add 6/20 and 1/21

6/20 + 1/21 is 73/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 21 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    6/20 = 6 × 21/20 × 21 = 126/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    1/21 = 1 × 20/21 × 20 = 20/420
  4. Add the two like fractions:
    126/420 + 20/420 = 126 + 20/420 = 146/420
  5. 146/420 simplified gives 73/210
  6. So, 6/20 + 1/21 = 73/210

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