These lessons, with videos, examples and solutions help Grade 5 students learn to solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers.
For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.
Common Core: 5.NF.2
Solve Fraction Word Problems with Visual Bar Models
Kayla weighed her Halloween treats. She counted 1/4 of a pound of lollipops and 2/7 of a pound of gobstoppers. She also counted 1/3 of a pound of mints. How many pounds of candy did Kayla have altogether?
Add mixed numbers word problems
While gardening, Jan spend 1 3/4 hours planting and 2 1/8 hours trimming. What was the total hours worked by Jan in her garden?
Solve word problems involving addition of fractions - unlike denominators
Matthew ran 1/6 of a mile then took a break before running another 3/4 of a mile. How far did Matthew run in all?
Subtracting Fractions From Whole Numbers
Solve a word problem using bar models.
A craft store has a 9-yard spool of ribbon. In the morning, a customer buys 1/5 yard of ribbon from the spool. In the afternoon, another customer buys 7/10 yard of ribbon from the spool. How much ribbon is left?
Adding and subtracting unlike fractions word problems
Adding and subtracting mixed numbers word problems
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