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Add 45/60 and 75/90

45/60 + 75/90 is 19/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    45/60 = 45 × 3/60 × 3 = 135/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    75/90 = 75 × 2/90 × 2 = 150/180
  4. Add the two like fractions:
    135/180 + 150/180 = 135 + 150/180 = 285/180
  5. 285/180 simplified gives 19/12
  6. So, 45/60 + 75/90 = 19/12
    In mixed form: 17/12

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