更新时间2019-01-26 00:59:38
谢谢各位了!
这样可以吧:
35÷105(70/71)
=35÷(105×71+70)×71
=71÷[(105×71+70)÷35]
=71÷(3×71+2)
=71÷215
=71/215
=35/【(105*71+70)/71】
=35*【71/(105*71+70)】
=71/(3*71+2)
=71/215
35÷105又70/71
=35÷(105×71+70)×71
=1÷(3×71+2)×71
=71/215
先计算105又70/71÷35
105又70/71÷35
=(105+70/71)×1/35
=105×1/35+70/71×1/35
=3+2/71
=215/71
所以,35÷105又70/71=71/215
35÷105又70/71
=1÷(105又70/71÷35)
=1÷(105×1/35+70/71×1/35)
=1÷(3+2/71)
=1÷215/71
=71/215
35÷(105*71+70)/71
=35*71/7525
=71/215
=35/(105+70/71)
=35/105+71/2
=1/3+35+1/2
=35+5/6