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Adding and Subtracting Positive and Negative Fractions Answer Key

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Adding Positive Fractions
#1 1/4 + 3/4 1
#2 1/6 + 3/8 13/24
#3 7/9 + 5/6 1 11/18
#4 Mrs. Escalante was riding a bicycle on a bike path. After riding 2/3 of a mile, she discovered that she still needed to travel 3/4 of a mile to reach the end of the path. How long is the bike path? 1 5/12 miles
#5 In one town, 3/20 of the adopted dogs are German Shepherds, 7/25 are Golden Retrievers, and 2/5 are mixed breeds. Determine the fraction of adopted dogs that are either Golden Retrievers or mixed breeds. 17/25 Golden Retrievers or mixed breeds
Subtracting Positive Fractions
#1 7/10 - 3/10 2/5
#2 7/9 - 1/3 4/9
#3 3/4 - 1/3 5/12
#4 5/7 - 1/4 13/28
#5 Four students were scheduled to give book reports in 1 hour. After the first report, 2/3 of an hour remained. The next two reports took 1/6 hour and 1/4 hour. What fraction of the hour remained? 1/4 hour
Adding Positive and Negative Fractions
#1 -2/5 + -2/5 -4/5
#2 -5/6 + -4/9 -1 5/18
#3 -3/4 + 5/9 -7/36
#4 9/10 + -1/2 2/5
#5 1/6 + -2/3 -1/2
Subtracting Positive and Negative Fractions
#1 3/4 - (-1/4) 1
#2 1/3 - 3/4 -5/12
#3 1/2 - (-2/5) 9/10
#4 3/8 - (-1/4) 5/8
#5 -7/10 - 2/5 -1 1/10
Adding/Subtracting Mixed Numbers
#1 1 1/4 + 2 1/4 3 1/2
#2
#3 An adult hockey stick is 4 5/6 feet long. A junior hockey stick is 3 2/3 feet long. How much longer is the adult hockey stick than the junior hockey stick? 1 1/6 feet
#4
#5
Final Question