Question

Help with Algebra! (S-1/S)-(T+1/T)

Answer 1

\[\frac{ S-1 }{ S} - \frac{ T+1 }{ T }\]

Answer 2

The LCD is ST but, why can't ST be distributed to S-1 and T+1?

Answer 3

Multiply the first fraction by T/T and the 2nd fraction by s/s

Answer 4

But why not ST since ST is the LCD?

Answer 5

Try doing the step I just mentioned first. You might discover something In the process.

Answer 6

I figured it to be multiplied by t/t but, I was told to multiple the numerator and the denominator by the LCD..

Answer 7

the answer is 1t-1s/ts but, I just wanted to know if the LCD is ST then why is only T/T multiplied to the first fraction and S/S multiplied to the other

Answer 8

Are there exceptions or rules to this

Answer 9

If you do the work, you will discover Why for yourself.

Answer 10

I know how the work is done and I know how to find the LCD but, I don't know why cant I distribute the whole LCD