Hey FailInMaths.
There is no difference between the two expressions.
Hello, FailInMaths!
As chiro pointed out, there is no difference.
Here is a baby-talk explanation.
Consider the fraction
Since "negative divided by positive is negative": .
Consider the fraction
Since "positive divided by negative is negative": .
So we have: .
My high school math teacher explained it like this:
A fraction has three signs: .
. . the sign of the numerator, the sign of the denominator, and the sign of the fraction.
We can change any two of the signs without changing the value.
For example: . is actually
Change any two signs: .
See?