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Add 9/5 and 10/21

1st number: 1 4/5, 2nd number: 10/21

9/5 + 10/21 is 239/105.

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,
    9/5 = 9 × 21/5 × 21 = 189/105
  3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
    10/21 = 10 × 5/21 × 5 = 50/105
  4. Add the two fractions:
    189/105 + 50/105 = 189 + 50/105 = 239/105
  5. In mixed form: 229/105

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