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Add 4/80 and 5/90

4/80 + 5/90 is 19/180.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    4/80 = 4 × 9/80 × 9 = 36/720
  3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
    5/90 = 5 × 8/90 × 8 = 40/720
  4. Add the two like fractions:
    36/720 + 40/720 = 36 + 40/720 = 76/720
  5. 76/720 simplified gives 19/180
  6. So, 4/80 + 5/90 = 19/180

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