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Add 56/12 and 3/21

1st number: 4 8/12, 2nd number: 3/21

56/12 + 3/21 is 101/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    56/12 = 56 × 7/12 × 7 = 392/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    3/21 = 3 × 4/21 × 4 = 12/84
  4. Add the two like fractions:
    392/84 + 12/84 = 392 + 12/84 = 404/84
  5. 404/84 simplified gives 101/21
  6. So, 56/12 + 3/21 = 101/21
    In mixed form: 417/21

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