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# how do i rewrite this equation without fractions?

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53
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how do i rewrite this equation without fractions?

5-3/4x=3/8

Feb 18, 2019

#1
+4434
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$$5 - \dfrac 3 4 x = \dfrac 3 8\\ \text{multiply both sides by }8\\ 40 - 6x = 3$$

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Feb 18, 2019
#2
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Thank youi!!

is it the same for addition? I need this one too

2/3x +4=2/5

Guest Feb 18, 2019
#3
+99301
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BUT only if there are just numbers on the bottom - you have to be more careful if there are pronumerals (letters)

Multiply both sides of the equation but the smallest common denominator.

2/3x +4=2/5

$$\frac{2}{3}x+4=\frac{2}{5}\\ \frac{2x}{3}+4=\frac{2}{5}\\ \text{The lowest common denominator is 3*5=15}\\ 15[\frac{2x}{3}+4]=15*\frac{2}{5}\\ [\frac{15*2x}{3}+15*4]=\frac{15*2}{5}\\ \frac{5*2x}{1}+60=\frac{3*2}{1}\\ 10x+60=6$$

Melody  Feb 18, 2019