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Add 12/10 and 7/90

1st number: 1 2/10, 2nd number: 7/90

12/10 + 7/90 is 23/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 90 is 90
  2. For the 1st fraction, since 10 × 9 = 90,
    12/10 = 12 × 9/10 × 9 = 108/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    7/90 = 7 × 1/90 × 1 = 7/90
  4. Add the two fractions:
    108/90 + 7/90 = 108 + 7/90 = 115/90
  5. After reducing the fraction, the answer is 23/18
  6. In mixed form: 15/18

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