1)( 5/8-1/4): х=1/6 2)х*(11/12-1/4)=3/8 3)х*(1целая 2//3+5/9)=2/3 6)х: (4 целых1/3-3целых)=1целая1/2 *- умножить

X(11/12-1/4)=3/8
x(11/12-3/12)=3/8
8/12x=3/8
x=3/8*12/8
x=9/16

x(1 2/3+5/9)=2/3
x(1 6/9+5/9)=2/3
1 11/9x=2/3
x=2/3*9/20
x=3/10

x:(4 1/3-3)=1 1/2
x:1 1/3=1 1/2
x:4/3=3/2
x=3/2*4/3
x=2