Question

Stiind ca x/y=z/t , calculeaza 11- xt/yz

Answer 1

$\frac{x}{y} = \frac{z}{t}=\ \textgreater \ xt=yz=\ \textgreater \ \frac{xt}{yz}=1. \\ \\ 11- \frac{xt}{yz}=11-1=10.$

Answer 2

$\frac{x}{y} = \frac{z}{t}$
=>x*t=y*z = k 
11-$\frac{x*t}{y*z}$ = 11-$\frac{k}{k}$
11-1=10