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Subtract Fractions Numerically




 


Videos to help Grade 5 students learn how to subtract fractions making like units numerically.

Common Core Standards: 5.NF.1, 5.NF.2

Related Topics:
Lesson Plans and Worksheets for Grade 5

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 5

Common Core For Grade 5

New York State Common Core Math Module 3, Grade 5, Lesson 11

Lesson 11 Application Problem

Meredith went to the movies. She spent 2/5 of her money on a ticket and 3/7 of her money on popcorn. How much of her money did she spend?
(Bonus: How much of her money is left?)

Lesson 11 Concept Development

Problem 1: 1/3 - 1/5
Problem 2: 3/5 - 1/6
Problem 3: 1 3/4 - 3/5
Problem 4: 3 3/5 - 2 1/2
Problem 5: 5 3/4 = 3 1/6


1/2 - 1/5
1 1/5 - 2/3





Lesson 11 Problem Set

1. Generate equivalent fractions to get the same unit, then subtract.
7/10 - 1/3 =
1 2/5 - 3/8 =


Lesson 11 Homework

This video demonstrates how to subtract fractions by finding like units. Number lines and equivalent fractions are also stressed and utilized to solve equations using multiple methods.

1. First find a common unit, then subtract.
c) 7/10 - 3/5 =
d) 1 5/6 - 2/3 =



 

Lesson 11 Homework

This video demonstrates how to subtract fractions by finding like units. Number lines and equivalent fractions are also stressed and utilized to solve equations using multiple methods.
1. First find a common unit, then subtract.
a. 1/2 - 1/5 =
f. 5 6/7 - 3 2/3 =

3. 4 1/2 yards of cloth are needed to make a woman’s dress. 2 2/7 yards of cloth are needed to make a girl’s dress. How much more cloth is needed to make a woman’s dress than a girl’s dress?


Lesson 11 Homework

This video shows 3 techniques for subtracting with mixed number minuends and subtrahends.
1/3 - 1 1/5 =
5 6/7 - 2 2/3 =






4. Bill reads 1/5 of a book on Monday. He reads 2/3 of the book on Tuesday. If he finishes reading the book on Wednesday, what fraction of the book did he read on Wednesday?



 

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