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Add 20/3 and 49/21

1st number: 6 2/3, 2nd number: 2 7/21

20/3 + 49/21 is 9/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 21 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    20/3 = 20 × 7/3 × 7 = 140/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    49/21 = 49 × 1/21 × 1 = 49/21
  4. Add the two like fractions:
    140/21 + 49/21 = 140 + 49/21 = 189/21
  5. 189/21 simplified gives 9/1
  6. So, 20/3 + 49/21 = 9/1

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