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Add 21/10 and 10/18

1st number: 2 1/10, 2nd number: 10/18

21/10 + 10/18 is 239/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 18 is 90
  2. For the 1st fraction, since 10 × 9 = 90,
    21/10 = 21 × 9/10 × 9 = 189/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    10/18 = 10 × 5/18 × 5 = 50/90
  4. Add the two fractions:
    189/90 + 50/90 = 189 + 50/90 = 239/90
  5. In mixed form: 259/90

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