Răspuns :
x/1/3=y/1/4
x:1/3=x•3/1
x:1/4=x•4/1
3x=4y |:y
3x/y=4
x/y=4/3
sau
x/1/3=y/1/4=k
x=k/3
y=k/4
x/y=k/3:k/4
x/y=k/3•4/k
x/y=4/3
x:1/3=x•3/1
x:1/4=x•4/1
3x=4y |:y
3x/y=4
x/y=4/3
sau
x/1/3=y/1/4=k
x=k/3
y=k/4
x/y=k/3:k/4
x/y=k/3•4/k
x/y=4/3