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Add 8/21 and 2/20

8/21 + 2/20 is 101/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 20 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    8/21 = 8 × 20/21 × 20 = 160/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    2/20 = 2 × 21/20 × 21 = 42/420
  4. Add the two fractions:
    160/420 + 42/420 = 160 + 42/420 = 202/420
  5. After reducing the fraction, the answer is 101/210

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