5/6除以(1减9/20)乘1/5

问题描述:

5/6除以(1减9/20)乘1/5
答案等于10/33
如果不对那有是多少?

5/6÷(1-9/20)×1/5
=5/6÷11/20×1/5
=5/6×20/11×1/5
=50/33×1/5
=10/33