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Add 5/4 and 30/90

1st number: 1 1/4, 2nd number: 30/90

5/4 + 30/90 is 19/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180
  2. For the 1st fraction, since 4 × 45 = 180,
    5/4 = 5 × 45/4 × 45 = 225/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    30/90 = 30 × 2/90 × 2 = 60/180
  4. Add the two fractions:
    225/180 + 60/180 = 225 + 60/180 = 285/180
  5. After reducing the fraction, the answer is 19/12
  6. In mixed form: 17/12

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