Question

1/(11^20) - 1/(11^21) = 10/(11^21)
Can someone tell me the steps taken to get to that answer?

Answer 1

Make the denominators the same, and it should make sense.

Answer 2

1/(11^20) - 1/(11^21) = 10/(11^21)
\(\large \frac{1}{11^{20}}-\frac{1}{11^{21}} \)
\(\large \frac{1}{11^{20}}\color {red}{\cdot \frac{11}{11}}-\frac{1}{11^{21}} \)

Answer 3

now the denominators are the same, you all you need to do is subtract the numerators.

Answer 4

Whoa. Coloured text. How'd you do that?

Answer 5

I've been wanting to do that all day.

Answer 6

right click "show math" ---> "as tex"
insert this " \color {red}" into your LaTex....

Answer 7

Ahhhh...fantastic. Thank you.

Answer 8

yw... :)

Answer 9

hmmm.. i was gonna point you to the Latex group here on OS but apparently it's gone...
if you wanna "see" the code for Latex , see this:
http://www.codecogs.com/latex/eqneditor.php

Answer 10

haha... found it...
http://openstudy.com/study#/groups/latex practicing! :)

Answer 11

Nice. Cool.

Answer 12

Thanks, it actually makes sense!