(0,25+2 1/3-5/12)*24=
(0,25+21:3-5:12)*24=164
(0,25+2 1/3-5/12)*24= 1) 2 1/3=(1+2×3)/3=7/3 2)7/3-5/12=28/12-5/12=23/12 3) 0,25=25/100=1/4 4)1/4+23/12=3/12+23/12=26/12=13/6 5)13/6×24=3×4=12