脱式计算4/5-(5/6-1/3)=4/5-(5/6-2/6)=4/5-1/2=8/10-5/10=3/10
答:4/5-(5/6-1/3)=4/5-(5/6-2/6)=4/5-1/2=8/10-5/10=3/10
4/5-(5/6-1/3)=4/5-(5/6-2/6)=4/5-(3/6)=4/5-1/2=8/10-5/10=3/10。