1、(8/15÷0.32-7/9×0.375)÷1 又3/8=

问题描述:

1、(8/15÷0.32-7/9×0.375)÷1 又3/8=
2、1又3/7×(3又1/13-1又9/11)×0.7×28又3/8=
3、0.5×236×59/119=
4、(1又1/1992×3.6+3又3/5×8又1991/1992)÷9又3/5÷3又3/4=
5、(20又94/95×1.65-20又94/95+20又95/94)×47.5×0.8×2.5=
6、(9又2/7+7又2/9)÷(5/7+5/9)=

1、(8/15÷0.32-7/9×0.375)÷1 又3/8=(8/15x25/8-7/9x3/8)x8/11=(5/3-7/24)x8/11=11/8x8/11=12、1又3/7×(3又1/13-1又9/11)×0.7×28又3/8=10/7x(3+1/13-1-9/11)x7/10x(28+3/8)=(2-106/143)x227/8=180/143x227/8=...