Hi,

Can this formula be simplified?

x = (d/(a-b)) - (d/a)

Any help would be much appreciated...

Thanks,

Chris

Printable View

- June 26th 2012, 04:40 AMcjcassHelp needed to simplify a formula - this is probably easy!!!
Hi,

Can this formula be simplified?

x = (d/(a-b)) - (d/a)

Any help would be much appreciated...

Thanks,

Chris - June 26th 2012, 04:50 AMReckonerRe: Help needed to simplify a formula - this is probably easy!!!
- June 26th 2012, 04:54 AMcjcassRe: Help needed to simplify a formula - this is probably easy!!!
Hi,

I'm not a mathematician so could you please give me the result.

Many thanks in anticipation,

Chris - June 26th 2012, 05:08 AMcjcassRe: Help needed to simplify a formula - this is probably easy!!!
Sorry, hope I didn't come across rude in my last reply!!

- June 26th 2012, 05:33 AMReckonerRe: Help needed to simplify a formula - this is probably easy!!!
Well, I'm not going to do your work for you. If you really have no idea what to do, you might want to try to find a tutorial online. I found this on Google, it covers addition and subtraction of rational expressions towards the bottom.

For your problem, note that our lowest common denominator is We need to get this denominator in both fractions. To do that, we should multiply the numerator and denominator of the first fraction by and we multiply the numerator and denominator of the second fraction by - June 26th 2012, 05:41 AMcjcassRe: Help needed to simplify a formula - this is probably easy!!!
Ok, now I'm with you - many thanks for your help!!