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Add 18/36 and 10/80

18/36 + 10/80 is 5/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 36 × 20 = 720,
    18/36 = 18 × 20/36 × 20 = 360/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    10/80 = 10 × 9/80 × 9 = 90/720
  4. Add the two like fractions:
    360/720 + 90/720 = 360 + 90/720 = 450/720
  5. 450/720 simplified gives 5/8
  6. So, 18/36 + 10/80 = 5/8

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