Question

15\х=5\8 12\х=4\5 3\5=7\х

Answer 1

$\frac{15}{x}=\frac{5}{8}$

$x=\frac{15*8}{5}$

$x=24$

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$\frac{12}{x}=\frac{4}{5}$

$x=\frac{12*5}{4}$

$x=15$

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$\frac{3}{5}= \frac{7}{x}$

$x=\frac{5*7}{3}$

$x=11\frac{2}{3}$