1.75/0.5+4.25*2 简便怎么写?
问题描述：
1.75/0.5+4.25*2 简便怎么写?
答
1.75/0.5+4.25*2
=(1+0.75)/0.5+(4+0.25)*2
=(1+0.75)*2+(4+0.25)*2
=(1+0.75+4+0.25)*2
=12
答
1.75/0.5+4.25*2=1.75*2+4.25*2
=(1.75+4.25)*2
=6*2
=12
答
1.75/0.5+4.25*2
=1.75 *2 + 4.25*2
=2*(1.75+4.25)
=2* 6
=12
1.75/0.5 就是乘于 1/2 的倒数就是2