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Add 18/2 and 21/10

1st number: 9 0/2, 2nd number: 2 1/10

18/2 + 21/10 is 111/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 10 is 10
  2. For the 1st fraction, since 2 × 5 = 10,
    18/2 = 18 × 5/2 × 5 = 90/10
  3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
    21/10 = 21 × 1/10 × 1 = 21/10
  4. Add the two fractions:
    90/10 + 21/10 = 90 + 21/10 = 111/10
  5. In mixed form: 111/10

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