Hi all,

I'm trying to simplify t = [tex]\frac{(3b * 4)}{2b}[\MATH]

In my head it simplifies to 3b*2, but the answer is 6?

Thx,

D

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- May 4th 2011, 05:12 AMdumluckSimplification with an Unknown
Hi all,

I'm trying to simplify t = [tex]\frac{(3b * 4)}{2b}[\MATH]

In my head it simplifies to 3b*2, but the answer is 6?

Thx,

D - May 4th 2011, 05:18 AMQuacky
Use the [Tex] tags; Latex hasn't been working for a while.

$\displaystyle \frac{3b\times~4}{2b}$

Writing '4' as 2x2, we have:

$\displaystyle =\frac{3\times b\times 2\times 2}{2\times b}$

Just rearranged slightly for clarity:

$\displaystyle =\frac{2\times b\times 2 \times 3}{2 \times b}$

Just cancel like terms from here.

$\displaystyle =6$

Where did you go wrong, exactly?