Vocabulary
The top number of a fraction
What is a numerator?
You need to do this before adding/subtracting fractions.
What is finding a common denominator?
8/9 - 3/10 =
53/90
(1/4)(3/5)
3/20
1/5 ÷ 7/4
4/35
The bottom number of a fraction
After finding the equivalent fractions, you need to add or subtract only this part of the fraction.
What is adding/subtracting the numerator?
12/20 + 10/15 =
1 4/15
(4/7)(7/9)
4/9
3/2 ÷ 10/7
21/10 or 2 1/10
This is the operation that the fraction line represents.
What is division?
These are the three steps needed to divide fractions. The sea creatures sang about them.
What is keep-change-flip?
8/20 - 3/15 =
1/5
(-1 1/4)(9). Leave your answer as a mixed number.
-11 1/4
(-1/2)÷(1 1/4)
-2/5
You multiply by this to create equivalent fractions.
What is a form of one?
You do this step, if possible, at the end of each problem involving fraction operations.
What is simplifying?
(9 1/3) - (4 1/2). Leave your answer as a mixed number.
4 5/6
(-1 5/7)(-2 1/2). Leave your answer as a mixed number.
4 2/7
(3 5/9) ÷ 3. Leave answer as a mixed number.
1 5/27
Fractions that have the same value even though they look different.
What are equivalent fractions?
You convert improper fractions into this form.
What is a mixed number?
(1 2/5)+(3 3/4). Leave your answer as a mixed number.
5 3/20
(-2 2/3)(4 1/10). Leave your answer as a mixed number.
-10 14/15
(-3 7/10)÷(2 1/4). Leave answer as a mixed number.
-1 29/45