Miller Math Notes Adding and subtracting_fractions 2013-2014
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Name:_____________________Date:___________________Period:_______ ________ Miller’s Math Notes Topic: Adding and Subtracting Fractions With Like Denominators Example #1 Adding with Like Denominators Choral Reading To add fractions with a common denominator, bring the denominator over and add the numerators. Simplify if necessary. Whole Group I DO WE DO 3 10 + 1 10 =¿ 1 9 + 4 9 =¿ Partner Independent WE DO YOU DO 3 8 + 5 8 =¿ 4 15 + 8 15 =¿ Applicatio n Dasia is making a blanket for her sister Destiny. She wants the blanket to have a length of 5 ½ feet and a width of 4 ½ feet. What is the perimeter of the blanket? Adding and Regrouping WE DO YOU DO 2 4 9 +3 7 9 =¿ 12 5 6 +4 5 6 =¿
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Transcript of Miller Math Notes Adding and subtracting_fractions 2013-2014
Name:_____________________Date:___________________Period:_______________
Miller’s Math Notes
Topic: Adding and Subtracting Fractions With Like DenominatorsExample #1
Adding with Like Denominators
Choral Reading
To add fractions with a common denominator, bring the denominator over and add the numerators. Simplify if necessary.
WholeGroup
I DO WE DO
3
10+ 1
10=¿ 1
9+ 4
9=¿
Partner
Independent
WE DO YOU DO
38+ 5
8=¿ 4
15+ 8
15=¿
Application
Dasia is making a blanket for her sister Destiny. She wants the blanket to have a length of 5 ½ feet and a width of 4 ½ feet. What is the perimeter of the blanket?
Adding and Regrouping
WE DO YOU DO
249+3
79=¿ 12
56+4
56=¿
Process It! What is your tips list for solving these kinds of problems?
Example #2
Subtracting with Like Denominators
Choral Reading
To subtract fractions with a common denominator, bring the denominator over and subtract the numerators. Simplify if necessary.
WholeGroup
I DO WE DO
23−1
3=¿ 9
10− 3
10=¿
Partner
Independent
WE DO YOU DO
712
− 512
=¿ 89−5
9=¿
Application
Angelo and his two brothers are building a triangular sandbox for the local neighborhood park.
The sandbox has a perimeter of 50 78 feet. If Angelo
and his brothers already have 29 38 feet of wood.
How much more wood does the brothers need in order to successfully complete the sandbox project?
Subtracting and Regrouping
WE DO YOU DO
535−3
45 48
18−35
78=¿
Stop and Compare and contrast adding and subtracting
Jot fractions. How are they similar? Different?
Name: ___________________________ Date: ___________________ Period: _________
Adding and Subtracting Fractions Day 1Measurement Connection
Directions: Find the missing measurement.
1.) 2.)
Perimeter: __________________ The perimeter of the triangle is 12in.
The missing leg: ________________
315
245
535
434
X
434
