一个数的三分之一比他的五分之二少4,这个数的十二分之五是多少
一个数的三分之一比他的五分之二少4,这个数的十二分之五是多少
……越快越好………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………会的高手速度…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………不会边去…………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………急………………………………………………………………………………………………………………………………………………………………不多说……………………………………………………………………………………………………………………………………………………………………
4÷（2/5-1/3）X5/12=4÷1/15*5/12=4*15*5/12=25