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Add 21/10 and 21/3

1st number: 2 1/10, 2nd number: 7 0/3

21/10 + 21/3 is 91/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 3 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 10 × 3 = 30,
    21/10 = 21 × 3/10 × 3 = 63/30
  3. Likewise, for the 2nd fraction, since 3 × 10 = 30,
    21/3 = 21 × 10/3 × 10 = 210/30
  4. Add the two like fractions:
    63/30 + 210/30 = 63 + 210/30 = 273/30
  5. 273/30 simplified gives 91/10
  6. So, 21/10 + 21/3 = 91/10
    In mixed form: 91/10

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