1/4/3/4 x-1/2+2/5=1/2

Question

1/4/3/4 x-1/2+2/5=1/2

Answer 1

1/4  /  3/4 = 3
1/2  +  2/5 = 7/10
3х - 7/10 = 1/2
3х = 7/10 + 1/2
3х = 1  2/10
х = 1  2/10  /  3
х = 4/10
Ответ: 4/10