(1/2+1/2)除以1/8 18/5除以(5/12-2/5) (下面还有)有的做出来 急用~
问题描述:
(1/2+1/2)除以1/8 18/5除以(5/12-2/5) (下面还有)有的做出来 急用~
35除以(1+1/5) 35除以 (1-1/7)
答
(1/2+1/2)除以1/8
=1×8
=8
18/5除以(5/12-2/5)
=18/5÷1/60
=18/5×60
=216
35除以(1+1/5)
=35÷6/5
=35×5/6
=175/6
35除以 (1-1/7)
=35÷6/7
=35×7/6
=245/6