Question

If eight-fourteenths equals the fraction 3 over x, what do you know about their cross products

Answer 1

Proportion - I multiply "on the cross"

$\frac{8}{14}=\frac{3}{x}\\\\\frac{4}{7}=\frac{3}{x}\\\\4x=3\cdot 7\\\\ 4x=21 \\\\ x=\frac{21}{4}=5\frac{1}{4}=5.25$

Answer 2

Do the butterfly and the answer 5.25