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Add 56/5 and 3/21

1st number: 11 1/5, 2nd number: 3/21

56/5 + 3/21 is 397/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 21 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 5 × 21 = 105,
    56/5 = 56 × 21/5 × 21 = 1176/105
  3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
    3/21 = 3 × 5/21 × 5 = 15/105
  4. Add the two like fractions:
    1176/105 + 15/105 = 1176 + 15/105 = 1191/105
  5. 1191/105 simplified gives 397/35
  6. So, 56/5 + 3/21 = 397/35
    In mixed form: 1112/35

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