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Add 15/45 and 5/4

1st number: 15/45, 2nd number: 1 1/4

15/45 + 5/4 is 19/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 4 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    15/45 = 15 × 4/45 × 4 = 60/180
  3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
    5/4 = 5 × 45/4 × 45 = 225/180
  4. Add the two like fractions:
    60/180 + 225/180 = 60 + 225/180 = 285/180
  5. 285/180 simplified gives 19/12
  6. So, 15/45 + 5/4 = 19/12
    In mixed form: 17/12

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