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Cody has 7/8 pound of cheese. he uses 1/7 since there are 16 ounces in a pound how much is left

User Wilest
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1 Answer

4 votes
Step One
Find the fraction left.
Starting amount = 7/8 pound
Used amount = 1/7 of a pound.

The common denominator of these two fractions is 8 * 7 = 56

Amount left = amount started with - amount used
Amount left = 7/8 - 1/7
Amount left =
(7 *7 )/(8 * 7) - (1 * 8)/(7 * 8)
Amount left =
(49 )/(56) - ( 8)/(56)
Amount left = 41 / 56 pounds

Step Two
Convert the Answer to ounces.

Ounces = (41/56) * 16
Ounces = 11.71 ounces almost 11 3/4
User Anduril
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6.1k points