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How can complex fractions be used to solve problems involving ratios?

Sagot :

mackiemesser
When you have ratios, and some unknowns, you can create complex fractions from them. Bring them to the same denominator, and solve for x.

Example - we have this proportion:
2-x
5-45
And we can change it into fraction:
[tex]\frac{2}{5}=\frac{x}{45}[/tex]

[tex]\frac{2*9}{5*9}=\frac{x}{45}[/tex]

[tex]\frac{18}{45}=\frac{x}{45}[/tex]
18=x

In case of more complex fractions it may come in handy.
aliviamadl910

Answer:

Step-by-step explanation:

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