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Add 45/90 and 54/72

45/90 + 54/72 is 5/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    45/90 = 45 × 4/90 × 4 = 180/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    54/72 = 54 × 5/72 × 5 = 270/360
  4. Add the two like fractions:
    180/360 + 270/360 = 180 + 270/360 = 450/360
  5. 450/360 simplified gives 5/4
  6. So, 45/90 + 54/72 = 5/4
    In mixed form: 11/4

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