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Add 18/60 and 40/80

18/60 + 40/80 is 4/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 60 × 4 = 240,
    18/60 = 18 × 4/60 × 4 = 72/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    40/80 = 40 × 3/80 × 3 = 120/240
  4. Add the two like fractions:
    72/240 + 120/240 = 72 + 120/240 = 192/240
  5. 192/240 simplified gives 4/5
  6. So, 18/60 + 40/80 = 4/5

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