Dividing Fractions
Intro: Dividing Fractions
How to divide fractions!
This instructable is an entry to the Burning Questions Round 6.5 contest.
The fraction images were generated using this site
This instructable is an entry to the Burning Questions Round 6.5 contest.
The fraction images were generated using this site
STEP 1: Reciprocate the Second Fraction
To divide fractions we first need to reciprocate the second fraction(See first image).
This just means we switch the positions of the numerator(top number) and denominator (bottom number) (See second image).
Then, after reciprocating the fraction we need to change the divide sign to a multiply(See third image).
In this example using 1/2 / 1/3, we are left with 1/2 X 3/1.
This just means we switch the positions of the numerator(top number) and denominator (bottom number) (See second image).
Then, after reciprocating the fraction we need to change the divide sign to a multiply(See third image).
In this example using 1/2 / 1/3, we are left with 1/2 X 3/1.
STEP 2: Do the Multiplication
Now all you have to do is the multiplication(See image).
If you don't know how to multiply fractions, then check out my other instructable called Multiplying Fractions. Remember to simplify your result if necessary. If you cross-cancel the multiplication, (again, see Multiplying Fractions) remember that you must cross cancel AFTER you convert the divide to multiply, NOT before!!!
If you don't know how to multiply fractions, then check out my other instructable called Multiplying Fractions. Remember to simplify your result if necessary. If you cross-cancel the multiplication, (again, see Multiplying Fractions) remember that you must cross cancel AFTER you convert the divide to multiply, NOT before!!!
7 Comments
sheepy830 7 years ago
is the answer to the first one 42/32
Your Highness 9 years ago
My school says keep flip switch
U keep first number ,switch it to multiplication, and switch the 2nd fraction
Regina Nicole Banda 9 years ago
I still don't get it because all of my math problems are different.
MrLouque 14 years ago
INSTRUCTUBAL 15 years ago
DavidRobertson 15 years ago
INSTRUCTUBAL 15 years ago