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sue101
 one year ago
Best ResponseYou've already chosen the best response.1(4a^5/7b^4) * (2b^2/2a^4)

Hero
 one year ago
Best ResponseYou've already chosen the best response.1Rewrite like this: \[\frac{4a^5 \dot\ 2b^2}{2a^4 \dot\ 7b^4}\]

sue101
 one year ago
Best ResponseYou've already chosen the best response.1do i just multiply accross?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1Or you can work with each separately by rewriting like this: \[\frac{4}{2} \dot\ \frac{a^5}{a^4} \dot\ \frac{2}{7} \dot\ \frac{b^2}{b^4}\]

sue101
 one year ago
Best ResponseYou've already chosen the best response.1wow thats confusing o.O

Hero
 one year ago
Best ResponseYou've already chosen the best response.1You already know how to reduce the numerical fractions.

Hero
 one year ago
Best ResponseYou've already chosen the best response.1You know that 4/2 = 2. You also know that 2/7 is already in simplest form and cannot be reduced any further

Hero
 one year ago
Best ResponseYou've already chosen the best response.1So for the numbers, you are just left with \[2 \times \frac{2}{7} = \frac{4}{7}\]

Hero
 one year ago
Best ResponseYou've already chosen the best response.1For the variables, you have to use this rule: \[\frac{a^y}{a^x} = a^{y  x}, y > x\] \[\frac{b^x}{b^y} = \frac{1}{b^{yx}}, x<y\]

Hero
 one year ago
Best ResponseYou've already chosen the best response.1So \[\frac{a^5}{a^4} = a^{5  4} = a^1 = a\] \[\frac{b^2}{b^4} = \frac{1}{b^{42}} = \frac{1}{b^2}\]

sue101
 one year ago
Best ResponseYou've already chosen the best response.1thes are my multiple choice answers: 4a^9/7b^^6 4a/7b^2 7b^2/4a 4/7a^9b^6

Hero
 one year ago
Best ResponseYou've already chosen the best response.1\[\frac{4}{7} \times a \times \frac{1}{b^2} = \frac{4a}{7b^2}\]

sue101
 one year ago
Best ResponseYou've already chosen the best response.1alirght so B? Thanks! <3

Hero
 one year ago
Best ResponseYou've already chosen the best response.1You should learn how to do these on your own.
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