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Add 12/4 and 9/90

1st number: 3 0/4, 2nd number: 9/90

12/4 + 9/90 is 31/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    12/4 = 12 × 45/4 × 45 = 540/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    9/90 = 9 × 2/90 × 2 = 18/180
  4. Add the two like fractions:
    540/180 + 18/180 = 540 + 18/180 = 558/180
  5. 558/180 simplified gives 31/10
  6. So, 12/4 + 9/90 = 31/10
    In mixed form: 31/10

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