Для начала решим уравнение x:(4/5) = (3/4):(4/5):
x / (4/5) = (3/4) / (4/5)x = (3/4) * (5/4)x = 15/16
Теперь решим уравнение (7 4/5) / (2 3/5) = (4 1/2) / y:
(7 + 4/5) / (2 + 3/5) = (4 + 1/2) / y(39/5) / (13/5) = (9/2) / y39/13 = 9/(2y)39y = 117y = 3
Итак, x = 15/16 и y = 3.
Для начала решим уравнение x:(4/5) = (3/4):(4/5):
x / (4/5) = (3/4) / (4/5)
x = (3/4) * (5/4)
x = 15/16
Теперь решим уравнение (7 4/5) / (2 3/5) = (4 1/2) / y:
(7 + 4/5) / (2 + 3/5) = (4 + 1/2) / y
(39/5) / (13/5) = (9/2) / y
39/13 = 9/(2y)
39y = 117
y = 3
Итак, x = 15/16 и y = 3.