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Fractions
Mathématiques
Middle School Math
Fractions

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Name _____________________________
Date ___________________
Fractions
Complète.

1.  M. Bloop fait une demonstration avec un bac d'eau. Ceci est utilisé pour observer l'action d'eau sur des sédiments (parmi d'autres choses). Il a commencé avec le taux d'écoulement deone and one-fourthgallons per minute (gpm) and every thirty seconds he halved the rate. Throughout the demonstration the students watched small marked stones move down the trough. What was the flow rate (in gpm) after he halved the rate six times? Express your answer as a fraction.

2.  Feldspar is a common mineral on earth. By some estimates, feldspar makes upthree-fifthsof the mineral mass in the crust. Convert this fraction to a percent.

3.  Très profond dans le manteau de la Terre, près du noyau, la température est environ5000C. Si la température sur la surface près de ta maison est22C aujourd'hui, la température de la surface est quelle fraction de la température du manteau ?

4.  A new island has formed off the coast of Bay City, which is not unexpected since it is near a subduction zone. The island is currently about2km2. How many years would it take for the island to increase its area by one-half through volcanic activity if it expands at a rate ofthree-eighthsof a square kilometer each year?

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6.  A la convention des géologues1/3of the people are students,1/4sont des professeurs et1/12are industry representatives. The rest are employees of the convention center. If there are360people at the convention, how many are employees of the center?



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Fractions
Mathématiques
Middle School Math
Fractions

This worksheet still contains English.
edHelper is working on the translation