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Add 5/4 and 63/90

1st number: 1 1/4, 2nd number: 63/90

5/4 + 63/90 is 39/20.

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,
    5/4 = 5 × 45/4 × 45 = 225/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    63/90 = 63 × 2/90 × 2 = 126/180
  4. Add the two like fractions:
    225/180 + 126/180 = 225 + 126/180 = 351/180
  5. 351/180 simplified gives 39/20
  6. So, 5/4 + 63/90 = 39/20
    In mixed form: 119/20

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