简便计算题简便计算:16/23 * 27 + 16 * 19/23

问题描述:

简便计算题
简便计算:
16/23 * 27 + 16 * 19/23

(16/23)*(27+19)
=(16/23)*46*2*2
=16*2
=32

=16/23*27+16/23*19
=16/23*(27+19)
=16/23*46
=32

16/23*27+16*19/23
=16/23* 27+16/23* 19
=(27+19)* 16/23
=32

16/23 * 27 + 16 * 19/23
=16/23*(27+19)
=16*46/23
=16*2
=32

=(16*27+16*19)/23
=16*(27+19)/23
=16*46/23
=16*2
=32

16/23 * 27 + 16 * 19/23
=16/23*27+19*16/23
=16/23*(27+19)
=16/23*46
=32

27/23*16+16*19/23=16*(27/23+19/23)=16*46/23=16*2=32

(16/23)*(27+19)
=(16/23)*46
=16*2=32

23分之16×27+19×23分之16
(19+27)×23分之16
46×23分之16
32
原因:分数的分子调换位置积不变所以后面可以调换
我们也做过老师说的保证对

将16÷23提出来,得(16÷23)×(27+19)再约分就行了