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Add 54/90 and 20/80

54/90 + 20/80 is 17/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 90 × 8 = 720,
    54/90 = 54 × 8/90 × 8 = 432/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    20/80 = 20 × 9/80 × 9 = 180/720
  4. Add the two like fractions:
    432/720 + 180/720 = 432 + 180/720 = 612/720
  5. 612/720 simplified gives 17/20
  6. So, 54/90 + 20/80 = 17/20

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