0.4
Х:3 1/5=4 1/2:2 1/4
3 1/5 * 4 1/2 = Х * 2 1/4
Х = (3 1/5 * 4 1/2) /2 1/4 = (16/5 * 9/2) / 9/4 =
= 16/5 * 9/2 * 4/9 = 4/5 * 1/2 = 4/10 = 0.4
0.4
Х:3 1/5=4 1/2:2 1/4
3 1/5 * 4 1/2 = Х * 2 1/4
Х = (3 1/5 * 4 1/2) /2 1/4 = (16/5 * 9/2) / 9/4 =
= 16/5 * 9/2 * 4/9 = 4/5 * 1/2 = 4/10 = 0.4