Adding And Subtracting Fractions With Like Denominators
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4Name: _____________________________ Block: ______ Date: _______
SOL:6.6
NOTES: Adding and Subtracting Fractions with LIKE Denominators
Simplest Form
– the form of a fraction when the GCF of the numerator and denominator is 1.
MAKE ALL MIXED NUMBERS INTO IMPROPER FRACTIONS!
Steps to solve fractions with like denominators: FRACTIONS
1) Add or subtract the numerators of the fractions
2) Keep the denominator the same!
3) Simplify (simplest form) the answer (includes changing improper fractions into
mixed numbers).
2
3
2
1
1
3
3
1
1
2
3
1
4
Ex:
+
=
=
Ex:
-
=
=
Ex: 2
+ 1
= 3
5
5
5
5
5
5
5
5
5
5
5
mixed numbers
Steps to solve
with like denominators: MIXED NUMBERS
1) Change all mixed numbers into improper fractions
2) Add or subtract the numerators of the fractions
3) Simplify the answer (includes changing improper fractions into mixed
numbers)
1
1
13
7
20
2
7
3
47
27
20
4
1
4
+ 2
=
+
=
= 6
5
- 3
=
-
=
= 2
= 2
3
3
3
3
3
3
8
8
8
8
8
8
2
Examples:
You have to have the SAME DENOMINATOR!
7
5
4
6
5
2
4
1
1)
-
2)
+
3)
-
4)
+
8
8
7
7
9
9
5
5
2
1
1
5) A recipe calls for
cup of water,
cup of oil, and
cup of milk. How much liquid is used?
3
3
3
numerator numerator
(OR)
whole number whole number
_
_
keep the same deno
_
_
_
min
ator
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