Răspuns :
a-b =6
a :1/3 =b : 1/4 =k
a =1/3 *k ; a = k/3
b =1/4*k ;b =k/4
k/3+k/4 =6 numitor comun 12
4k +3k =6
k =6
a =k/3 =6/3
b =k/4 =6/4
6/3-6/4 =6 numitor 12
24-18 =6
a :1/3 =b : 1/4 =k
a =1/3 *k ; a = k/3
b =1/4*k ;b =k/4
k/3+k/4 =6 numitor comun 12
4k +3k =6
k =6
a =k/3 =6/3
b =k/4 =6/4
6/3-6/4 =6 numitor 12
24-18 =6