Question

1/4 x+1/6x+1/8x=39/56

Answer 1

1/4x + 1/6x + 1/8x = 39/56
24/96x + 16/96x + 12/96x = 39/56
52/96x = 39/56 
13/24x = 39/56 
x = 39/56 : 13/24 
x = 9/7
x = 1 2/7

Answer 2

х/4+х/6+х/8=39/56
(6х+4х+3х)/24=39/56
13х/24=39/56
х=39/56:13/24
х=39/56*24/13
х=3*3/7
х=9/7