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Add 8/90 and 72/80

8/90 + 72/80 is 89/90.

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,
    8/90 = 8 × 8/90 × 8 = 64/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    72/80 = 72 × 9/80 × 9 = 648/720
  4. Add the two like fractions:
    64/720 + 648/720 = 64 + 648/720 = 712/720
  5. 712/720 simplified gives 89/90
  6. So, 8/90 + 72/80 = 89/90

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