(1,704:0,8-1,73)*7,16-2,64=
(1.704:0.8-1.73)*7.16-2.64=0.224
1)1.704:0.8=2.13
2)2.13-1.73=0.4
3)0.4*7.16=2.864
4)2.864-2.64=0.224