I need the break down on how to get the answer please.

8 21/22+3/4-5/12=?

The eight is a mix number with twenty one and twenty two

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- Sep 13th 2009, 08:48 AMMath NoobHow would i do this work out?
I need the break down on how to get the answer please.

8 21/22+3/4-5/12=?

The eight is a mix number with twenty one and twenty two - Sep 13th 2009, 08:53 AMVonNemo19
- Sep 13th 2009, 08:56 AMMath Noob
the eight is the whole number of 8 21/22

you have to multiply 22 by 8 and then add the 21 correct?

i got that part figured out now what's next? find the common denominator of each fraction? - Sep 13th 2009, 08:58 AMe^(i*pi)
- Sep 13th 2009, 08:58 AMVonNemo19
- Sep 13th 2009, 09:00 AMMath Noob
how did you find the common denominator so fast?

- Sep 13th 2009, 09:02 AMe^(i*pi)
- Sep 13th 2009, 09:03 AMVonNemo19
- Sep 13th 2009, 09:08 AMMath Noob
lol im still trying to figure it out

- Sep 13th 2009, 09:11 AMMath Noob
the answer is 9 19/66

- Sep 13th 2009, 09:12 AMe^(i*pi)
- Sep 13th 2009, 09:17 AMMath Noob
because i am a noob, and would love to know how to number crunch

- Sep 13th 2009, 09:19 AMe^(i*pi)
By using a calculator and putting in the numbers

$\displaystyle \frac{197}{22} + \frac{9}{12} - \frac{5}{12}$

LCM is 132

$\displaystyle

(\frac{197}{22} \times \frac{6}{6}) + (\frac{9}{12} \times \frac{11}{11}) - (\frac{5}{12} \times \frac{11}{11})$

$\displaystyle = \frac{1182}{132} + \frac{99}{132} - \frac{55}{132}$

$\displaystyle = \frac{1182+99-55}{132}$

which should give the answer - Sep 13th 2009, 09:21 AMMath Noob
I have a ti-84 plus i just purchased, I'm trying to figure out how to use it. (Lipssealed)

- Sep 13th 2009, 09:23 AMe^(i*pi)
I edited my above post to include the answer :)