Step-by-step explanation:
What do we know?
[tex]\frac{2.5}{x} =\frac{10}{12}[/tex]
[tex]\frac{2.5}{x} is \: a \: simplified \: fraction \: of \: \frac{10}{12}.[/tex]
Divide 10/12 by 4:
[tex]\frac{10\div4}{12 \div 4} =\frac{2.5}{3}[/tex]
Substitute into the equation:
[tex]\frac{2.5}{x} =\frac{2.5}{3}[/tex]
x = 3.
