Multiplying and Dividing Fractions
Multiplying
When you multiply fractions, you multiply the numerators
together, and the denominators together.
Example #1:
Reduce to lowest form; divide by\par
highest common factor of 3
Lowest Form
Example #2:
A negative number times a negative
number makes a positive number
Example #3:
A negative number divided by/over a
negative number makes a positive number
The rules that you use when you multiply integers are also
used when you multiply fractions.
Dividing
How do you divide ?
You first need to know how to find the reciprocal of a
fraction.
Example #1
* Finding the reciprocal of a fractions is also know as
invertingthe fraction
When you divide fractions, there are only two things to
remember:
a) Invert (or find the reciprocal of) the second fraction
only, and
b) Multiply the fractions (which you already know how to do) !
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