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Add 15/90 and 63/12

1st number: 15/90, 2nd number: 5 3/12

15/90 + 63/12 is 65/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    15/90 = 15 × 2/90 × 2 = 30/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    63/12 = 63 × 15/12 × 15 = 945/180
  4. Add the two like fractions:
    30/180 + 945/180 = 30 + 945/180 = 975/180
  5. 975/180 simplified gives 65/12
  6. So, 15/90 + 63/12 = 65/12
    In mixed form: 55/12

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