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Add 30/90 and 18/80

30/90 + 18/80 is 67/120.

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,
    30/90 = 30 × 8/90 × 8 = 240/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    18/80 = 18 × 9/80 × 9 = 162/720
  4. Add the two like fractions:
    240/720 + 162/720 = 240 + 162/720 = 402/720
  5. 402/720 simplified gives 67/120
  6. So, 30/90 + 18/80 = 67/120

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