Question

简便计算 急急急急急急急急急急急急急急急急急急急急急急

9/10×﹙2/5÷1/4﹚
5/8×10/11＋3/8÷11/10
3－6/13÷9/26－2/3

Answer 1

是这样的：
9/10×﹙2/5÷1/4﹚ 5/8×10/11＋3/8÷11/10 3－6/13÷9/26－2/3
=9/10X2/5X4 =(5/8+3/8)X10/11 =3-(4/3+2/3)
=36/25 =10/11 =1

谢谢啦，~\(≧▽≦)/~啦啦啦！采纳的啦！~\(≧▽≦)/~啦啦啦~~~
相信我，末幽挫德！！

Answer 2

9/10 X (2/5 / 1/4)
= 0.9 X ( 0.4 X 4 )
= 3 X 0.3 X 0.4 X 4
= 1.2"
= 1.44

5/8 X 10/11 + 3/8 / 11/10
= 5/8 X 10/11 + 3/8 X 10/11
= 10/11 X (5/8 + 3/8)
= 10/11 X 8/8
= 10/11

3 - 6/13 / 9/26 - 2/3
= 3 - 12/9 - 2/3
= 3 - 4/3 - 2/3
= 3 - 6/3
= 3 - 2
= 1