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Add 3/12 and 63/90

3/12 + 63/90 is 19/20.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    3/12 = 3 × 15/12 × 15 = 45/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    63/90 = 63 × 2/90 × 2 = 126/180
  4. Add the two like fractions:
    45/180 + 126/180 = 45 + 126/180 = 171/180
  5. 171/180 simplified gives 19/20
  6. So, 3/12 + 63/90 = 19/20

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