Fraction Questions
What is the first step when solving adding and subtracting fractions with like denominators?
Draw a model or a number line to represent the fraction.
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!
How do you check your answers for adding and subtracting fractions?
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 mixed number?
A number that has a whole number and a fraction