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Add 8/21 and 12/4

1st number: 8/21, 2nd number: 3 0/4

8/21 + 12/4 is 71/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    8/21 = 8 × 4/21 × 4 = 32/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    12/4 = 12 × 21/4 × 21 = 252/84
  4. Add the two like fractions:
    32/84 + 252/84 = 32 + 252/84 = 284/84
  5. 284/84 simplified gives 71/21
  6. So, 8/21 + 12/4 = 71/21
    In mixed form: 38/21

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