# Algebra - how do you do this

(-7yt)/(3x)=?/(18xyt)
Building up the denominator Build each rational expression into an equivalent rational expression with the indicated denominator.

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1. Which is "the indicated denominator" ? If it is 18 xyt,

(-7yt)/(3x)= -42 y^2t^2/(18xyt)

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posted by drwls

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