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Add 54/90 and 5/20

54/90 + 5/20 is 17/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    54/90 = 54 × 2/90 × 2 = 108/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    5/20 = 5 × 9/20 × 9 = 45/180
  4. Add the two like fractions:
    108/180 + 45/180 = 108 + 45/180 = 153/180
  5. 153/180 simplified gives 17/20
  6. So, 54/90 + 5/20 = 17/20

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