87*71/86+15/86简算
问题描述:
87*71/86+15/86简算
答
1
+71过程(86+1)*71 /86 = 71 + 71/86?????87*71/86+15/86= (86+1)*71/86 + 15/86=86*71/86+ 1*71/86 + 15/86=71 + 1