the common denominator used to add and Adding Thirds and Fourths Montgomery County Public Schools Maryland Curriculum 20 Grade 5 2012 1 Think about how pattern blocks help to illustrate ID: 512454
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Slide1
Think about how pattern blocks help to illustrate
the common denominator used to add and .
Adding Thirds and Fourths
Montgomery County Public Schools, Maryland
Curriculum 2.0 – Grade 5 2012
1
+ = ___Slide2
Think about how pattern blocks help to illustrate
the common denominator used to add and .
2
+ = ___Slide3
Does partitioning thirds to make sixths help you add?
Can you partition fourths to make sixths?
3
+ = ___Slide4
Does partitioning fourths to make eighths help you add?
Can you partition thirds to make eighths?
4
+ = ___Slide5
Does partitioning thirds to make twelfths help you add?
Can you partition fourths to make twelfths?
5
+ = ___Slide6
6
+ = ___
What equivalent fractions help you add and ?Slide7
What is the sum of + ?
7
+ = ___
+ = ___Slide8
What is the relationship between the denominators used to determine the sum?
8
+ =
+ = ___Slide9
Why is one
third
replaced by
four twelfths?
9
+ =
+ = ___
Why is one
fourth
replaced by
three
twelfths?