Answer
$\frac{15}{4}$
Work Step by Step
We can write the given ratio as a fraction and then simplify in lowest terms.
Since 1 yard has 3 feet, we can write 10 yards as $(10\times3)=30$ feet.
$\frac{30feet}{8feet}$
Since both the denominator and numerator have the same unit, we can divide out the common unit.
$\frac{30}{8}=\frac{30\div2}{8\div2}=\frac{15}{4}$