1.8-1/(0.75+1/3)*13/8用简便方法计算

问题描述:

1.8-1/(0.75+1/3)*13/8用简便方法计算

1.8-1/(9/12+4/12)*39/24
1.8-12/13*39/24
1.8-2/3
1.8-1.5
0.3