[3-(5/6+1/3)]÷0.25=[3-(5/6+2/6)]÷0.25=[3-7/6]÷0.25=11/6÷0.25=11/6×4=22/3=7又1/3
[3-(5/6+1/3)]÷0.25=[3-7/6]÷1/4=11/6×4=22/3
