Definitions/Rules
The bottom number of a fraction
denominator
If you are dividing a whole number by a fraction you must first do what to the whole number?
Put a 1 underneath it to make it a fraction.
1/8 ÷ 4
1/32
1/5 ÷ 1/8
8/5
1 ÷ 1/5
5/1 or 5
The top number of a fraction
numerator
When dividing fractions, what do you do to the FIRST fraction in the problem? Keep, change, or flip?
KEEP it the same.
3/4 ÷ 1/4
12/4
3/7 divided by 2/5
15/14
3 ÷ 1/3
9/1 or 9
The three steps used when dividing fractions?
What is keep, Change, flip
When dividing fractions, what do you do to the division sign? Keep, change, flip?
Change it to multiplication.
5/8 ÷ 4
5/32
4/7 ÷ 2/3
12/14
1/6 ÷ 3
1/18
What is it called when you have a whole number and a fraction?
mixed number
When dividing fractions, what must you do to the SECOND fraction in the problem? Keep, change, flip?
flip it
7/9 ÷ 3
7/27
5/9 ÷ 7/17
85/63
7/13 ÷ 6
7/78
What is it called when you make a fraction smaller?
simplify
What is it called when the numerator is bigger than the denominator?
improper fraction
6/12 ÷ 10/11
66/120
9/13 divided by 5/6
54/65
6/7 divided by 9/15
90/63