Решите уровнение 5.8/7=8/z

Question

Решите уровнение 5.8/7=8/z

Comments

5,8=56/z; z=56/5,8=5*56/29=280/29=9 целых и 19/29

Answer 1

5.8/7=8/z
5.8×z=7×8
5.8 z=56
z=56:5,8 
z=56:29/5
 z=56×5/29
z =9 19/29