123除以4减1除以3等于分数怎么计算?123÷4-1÷3=30+(3/4)-(1/3)=30+(5/12).等于三十又十二分之五.
123除以4减1除以3等于：3045/100列式：123÷4-1÷3=30.75-1/3=30.45=3045/100
123÷30=4.1
