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Add 21/3 and 20/7

1st number: 7 0/3, 2nd number: 2 6/7

21/3 + 20/7 is 69/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    21/3 = 21 × 7/3 × 7 = 147/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    20/7 = 20 × 3/7 × 3 = 60/21
  4. Add the two like fractions:
    147/21 + 60/21 = 147 + 60/21 = 207/21
  5. 207/21 simplified gives 69/7
  6. So, 21/3 + 20/7 = 69/7
    In mixed form: 96/7

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