Решите уравнение z:3/14=3 1/9:4/9
Z:3/14=28/9*9/4 z:3/14=7 z=7*3:14 z=3/2=1,5
Z = 3/14 * 3 1/9 : 4/9 = 3/14 * 28/9 : 4/9 = 2/3 * 9/4 = 3/2 = 1 1/2