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Add 28/36 and 56/90

28/36 + 56/90 is 7/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    28/36 = 28 × 5/36 × 5 = 140/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    56/90 = 56 × 2/90 × 2 = 112/180
  4. Add the two like fractions:
    140/180 + 112/180 = 140 + 112/180 = 252/180
  5. 252/180 simplified gives 7/5
  6. So, 28/36 + 56/90 = 7/5
    In mixed form: 12/5

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