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Add 18/5 and 50/21

1st number: 3 3/5, 2nd number: 2 8/21

18/5 + 50/21 is 628/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 21 is 105
  2. For the 1st fraction, since 5 × 21 = 105,
    18/5 = 18 × 21/5 × 21 = 378/105
  3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
    50/21 = 50 × 5/21 × 5 = 250/105
  4. Add the two fractions:
    378/105 + 250/105 = 378 + 250/105 = 628/105
  5. In mixed form: 5103/105

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