(26,16/6+2,6×1,4)/0,4-0,4 = (26,(16/6)+2,(6×1),4)/0,4-0,4
= (26,2.67+2,6,4)/0.4-0.4
= (26,4.67,6,4)/0.4-0.4
= 36.67/0.4-0.4
= 91.675 - 0.4
= 91.275

Therefore, (26,16/6+2,6×1,4)/0,4-0,4 equals 91.275.