Answer
$\frac{92}{21}$
Work Step by Step
Percheron’s height to its prehistoric ancestor’s height As per Values given 5$\frac{3}{4}$ ft to 15$\frac{3}{4}$ in.
To compare in inch we need to multiply numerator by 12. (5$\frac{3}{4}$ ft)/(15$\frac{3}{4}$ in) =$\frac{23}{4}$ ft/$\frac{63}{4}$ in×$\frac{12in}{1ft}$ = $\frac{23}{4}$× $\frac{4}{63}$× $\frac{12}{1}$= $\frac{92}{21}$