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Fractions
Math
Middle School Math

 

Name _____________________________
Date ___________________
Fractions
Complete.
1.   Anna's recipe for apple fritters makes eighteen fritters and uses two-thirds of a cup of milk. Anna wants to make six fritters. How much milk will she need?
2.   Natalie is making chocolate milkshakes for Nicole's birthday party. There will be fourteen people at the party. It takes a third of a cup of milk to make one chocolate milkshake. How many cups of milk will it take to make fourteen milkshakes?

Complete.
3.   A recent forest fire near Littleville destroyed four-fifths of the trees in Bigtree National Forest. The forest covers 4920 km2. There is now about 30 tons of salvageable wood per km2 in the burned area. The part of the forest that was not destroyed by fire will not be open to the salvagers. Assuming the trees are evenly distributed throughout the park, about how long will it take to remove all the salvageable wood at a rate of 53 1/2 tons per day? Round your answer to the nearest whole number.
4.   One-third of the class grew peas, one-third grew carrots, and one-third grew beans. The class consisted of 63 students of which five-sevenths were girls. The teacher chose the three groups to be as equal in their boy-girl composition as possible. How many boys and girls were assigned to each team?

 

Key #2
Complete.
5.   In a creek bed, 1/6 of the gravel is less than 5 mm in diameter and 2/3 of it is between 5 and 10 mm in diameter. What fraction of the gravel is greater than one centimeter in diameter?
6.   Feldspar is a common mineral on earth. By some estimates, feldspar makes up three-fifths of the mineral mass in the crust. Convert this fraction to a percent.

Complete.
7.   A bus is making a trip from Bigtown to Megacity. The average round trip speed is always 54 MPH on this journey. The round trip distance is 120 miles. At Megacity the bus waits exactly 29 minutes and then returns to Bigtown. If the bus has completed 5/6 of this entire journey, how long has it been since it left Bigtown on the way to Megacity? Round your answer to the nearest minute.
8.   Two objects (very tiny space ships actually) hit a wall. Object one applied a force of 7/13 of a Newton to the wall and object two applied a force of 3/7 of a Newton. Prove which one applied the larger force. (force = mass x acceleration)

Complete.
9.   Six moles of silver nitrate followed by three moles of silver chloride are added to a vat containing 60 L of water. Of the silver that was added, what fraction came from the silver nitrate?
10.   If a solution of MgCl is 1/2 M, what will its concentration be if it is diluted by 29%? Express your answer as a fraction.

 

Key #2
Complete.
11.   Twelve people have signed up for the bowling tournament at Snookie's Bowling Alley and Arcade. This is about 9/16 of the maximum number of people allowed in the tournament. How many more can still sign up?
12.   The Floop family went to a hockey game last weekend. They spent $12 on food, $41 on souvenirs, and $9 on drinks. What fraction of their expenditures was spent on drinks?

 

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Fractions
Math
Middle School Math