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What fraction of the thickness of the thickest continental crust is the thickness of the oceanic crust? Give your answer as a reduced fraction.

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asked by Kai
  1. What thicknesses are you using for these crusts?

  2. Continental crust is 100km
    Oceanic crust is 5km

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    posted by Kai
  3. 5/100 = 1/20

  4. 5km/100 is equal to 1/20 because you dived 5km/100km by 5 which gives you 1/20

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    posted by lee
  5. What fraction of the thickness of the thickest Continental crust is the thickness of the oceanic crust give your answer as a reduced fraction

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