Definitions
Denominator
Bottom number of a fraction
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.
1/2 ÷ 4
1/8
1/2 ÷ 1/3
3/2 = 1 1/2
1 ÷ 1/5
5
Numerator
top number of a fraction
When dividing fractions, what do you do to the first fraction in the problem?
KEEP it the same.
3 ÷ 1/3
9
3/4 ÷ 2/5
15/8 = 1 7/8
3 ÷ 1/3
9
The rule (four words) used when dividing fractions? (We only use 3)
KEEP CHANGE FLIP SOLVE
When dividing fractions, what do you do to the division sign?
Change it to multiplication.
1/3 ÷ 4
1/12
4/7 ÷ 2/3
12/14 = 6/7
1/6 ÷ 3
1/18
What type of fraction is 15/4?
Improper Fraction
When dividing fractions, what must you do to the second fraction in the problem?
Find its reciprocal or flip it
2 ÷ 1/4
8
5/9 ÷ 1/2
10/9 = 1 1/9
1/4 ÷ 6
1/24
What type of fraction is 1/3?
Proper Fraction
Fractions should always be in this form: ______.
Simplest form
1/4 ÷ 2
1/8
3/4 divided by 3/4
1
5 ÷ 1/4
20