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Add 75/5 and 8/21

1st number: 15 0/5, 2nd number: 8/21

75/5 + 8/21 is 323/21.

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,
    75/5 = 75 × 21/5 × 21 = 1575/105
  3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
    8/21 = 8 × 5/21 × 5 = 40/105
  4. Add the two like fractions:
    1575/105 + 40/105 = 1575 + 40/105 = 1615/105
  5. 1615/105 simplified gives 323/21
  6. So, 75/5 + 8/21 = 323/21
    In mixed form: 158/21

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