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Add 90/9 and 21/10

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

90/9 + 21/10 is 121/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 10 is 90
  2. For the 1st fraction, since 9 × 10 = 90,
    90/9 = 90 × 10/9 × 10 = 900/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    21/10 = 21 × 9/10 × 9 = 189/90
  4. Add the two fractions:
    900/90 + 189/90 = 900 + 189/90 = 1089/90
  5. After reducing the fraction, the answer is 121/10
  6. In mixed form: 121/10

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