How do you divide #-\frac { 5} { 2} \div \frac { 5} { 7} #?
2 Answers
Explanation:
First, let's throw the negative out and just look at how the fractions are set up.
Isn't
If we go by that, then we can use a rather handy fractional algebraic rule which says:
So in reality...all we're doing is cross multiplying!
To set up your particular problem though (with the negative)...
(that negative is really in the numerator, so its the same as saying -5 * 7 divided by 2 * 5)
Doing this will get you an answer of
There is a slightly quicker way though...
Anytime you have common terms on the top or bottom, you can cancel them out!
Hope this helps!
Explanation:
Divide:
When dividing by a fraction, you invert it and multiply.
Simplify.
Simplify by dividing the numerator and denominator by