Question

这四道题的详细过程。谢谢。

Answer 1

3/5×1/6×5
=3/5×5×1/6
=3×1/6
=1/2
（8/9+4/27）×27
=8/9×27+4/27×27
=24+4
=28
11×7/10-7/10
=（11-1）×7/10
=10×7/10
=7
0.75×5/11+6/11×3/4
=3/4×5/11+6/11×3/4
=3/4×（5/11+6/11）
=3/4×1
=3/4

Answer 2

1、3/5×1/6×5
＝1/10×5
＝1/2
2、（8/9＋4/27）×27
＝8/9×27+4/27×27
＝24+4
＝28
3、11×7/10-7/10
＝77/10-7/10
＝7/10
＝7
4、0.75×5/11+6/11×3/4
＝3/4×5/11+3/11×3/2
＝15/44+9/22
＝15/44+18/44
＝33/44
＝3/4 （此四道数学题解答完毕）！谢谢！

Answer 3

3/5x5x1/6=3x1/6=1/2
（8/9+4/27）x27=24+4=28
11x7/10-7/10=（11-1）x7/10=7
0.75x5/11+6/11x3/4=3/4（5/11+6/11）=3/4x1=3/4