Reducing fractions??

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October 28th 2009, 05:17 PM
iamcoffee

Reducing fractions??

Not sure what to title this, but im having trouble with this problem in particular.

(17a^2b^3)/(18 yx) / (34 a ^2 )/(9xy)

I tried multiplying by the reciprocal:

(17 a^2 b^3) / (18 yx) * (9xy)/(34 a^2)

came up with

153b^3 /612 = b^3/4 [is this right??]
October 28th 2009, 05:39 PM
pickslides

Quote:

Originally Posted by iamcoffee

Not sure what to title this, but im having trouble with this problem in particular.

(17a^2b^3)/(18 yx) / (34 a ^2 )/(9xy)

I tried multiplying by the reciprocal:

(17 a^2 b^3) / (18 yx) * (9xy)/(34 a^2)

[is this right??]

$\frac{17 a^2 b^3}{18 yx} \times \frac{9xy}{34 a^2}= \frac{b^3}{4}$
October 29th 2009, 04:45 AM
HallsofIvy

Notice that you can write $\frac{17 a^2 b^3}{18 yx} \times \frac{9xy}{34 a^2}$ as $\frac{17}{34}\frac{9}{18}\frac{a^2}{a^2}\frac{x}{x }\frac{y}{y}b^3$

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