Answer:
.67
Step-by-step explanation:
12/17.88=.67
So, adding a negative number is the same as subtracting.
4-3+5-2
Then if you want, you can use the associative property.
(4-3)+(5-2)
1+3
4
54% is 54 out of 100.
There for the numerator is 54 and the denominator is 100.

Now, both the top and the bottom can be divided by 2. So:

=


can't be simplified anymore, therefore, 27/50 is 54% as a fraction.
~Hope this helped :)