Question

(1/4+3/4х):0,45=25/36

Answer 1

(1/4+3/4х):0,45=25/36
1/4+3/4х=25/36*0,45=45/144
3/4х = 45/144-1/4=45/144-36/144=9/144=1/16
3/4х=1/16
x = 1/16*4/3 = 4/48 = 1/12

Ответ: 1/12.