Question

Решите уравнение (4 1/5:х+1 1/3) : 2 4/35-4/5=1 8/15

Answer 1

(4 1/5 / х + 1 1/3) / 2 4/35 - 4/5 = 1 8/15
(21/5 / х + 4/3) / 74/35 = 4/5 + 23/15
(21/5 / х + 4/3) / 74/35 = 35/15
21/5 / х + 4/3 = 35/15 * 74/35
21/5 / х = 74/15 - 4/3
21/5 / х = 74/15 - 20/15
21/5 / х = 54/15
21/5 = 54/15 *х
х = 21/5 / 54/15
х = 21/18 = 1 3/18 = 1 1/6