Fraction Questions
What is the first step when solving adding and subtracting fractions with like denominators?
Add or subtract the numerators
2 1
____ + ____ =
3 3
1 whole
2
____ =
6
1/3
3 2
____ + ___ =
4 4
5
____. or. 1 1/4
4
What is a denominator?
The number below the line in a fraction.
Represents the total.
What are the 3 steps for turning an improper fraction to a mixed number?
8 2
____ + ___ =
9 9
10
___. or 1 1/9
9
4
____ = ___
8
2/4 or 1/2
1 5
2 ____ + ___ =
7 7
2 6/7
What is a numerator?
The number above the line in a fraction.
Represents how many pieces of the whole.
When adding and subtracting fractions, should we add and subtract the numerators and denominators?
No, if the denominators are the same, they remain the same.
4 3
____ + ___ =
12 12
7
____
12
7
____ = ___
21
1/3
1 4
3 ____ + ___ =
5 5
4
What does equivalent mean?
Equal in value or the same in value.
What is the final step when adding and subtracting fractions?
If the fraction is improper turn it into a mixed number.
_20__ + 10___ =
10 10
30
_____. or 3
10
5
____ = ___
25
1/5
4 2
3 ____ - ___ =
6 6
3 2/6
Do you subtract denominators?
NO!
Give me an addition or subtraction sentence with like denominators and have a teamate solve
Use a different strategy.
Number line
Model
Number Sentence
7 8
____ + ___ =
4 4
15
_____ or 3 3/4
4
8/32
1/4
6 2
4 ____ - 3 ___ =
6 6
1 4/6
What is a common (Like) denominator?
When your denominators are the same value.