5 5/12+(1,375-х)=6 1/6

5 5/12 +(1,375 -х=6 1/61,375 -х=6 1/6 - 5 5/121,375 - х=6 2/12 - 5 5/121,375 -х=9/12=3/4

-x=0,75-1,375=-1,300=1,3

0,75 different 0,075

1.375 =1 3/4........3/4=0,75

5 5/12 +(1,375 -х=6 1/61,375 -х=6 1/6 - 5 5/121,375 - х=6 2/12 - 5 5/121,375 -х=9/12=3/4х=1,375 -3/4х=1 3/8 - 3/4х=1 3/8 - 6/8х=5/8

5 5/12 + (1,375 - x) = 6 1/65 5/12 = 12/12 + 12/12 + 12/12 + 12/12 + 12/12 + 5/12 = 65/126 1/6 = 6/6 + 6/6 + 6/6 + 6/6 + 6/6 + 6/6 + 1/6 = 37/6 = 74/1265/12 + 1,375 - x = 74/121,375 - x = 74/12 - 65/121,375 - x = 9/121,375 - x = 0,75- x = 0,75 - 1,375- x = - 0,625x = 0,625Have a good day!!!