修路队今年修路2600米,比去年少修1/5,去年修路多少米?
问题描述:
修路队今年修路2600米,比去年少修
,去年修路多少米? 1 5
答
2600÷(1-
)1 5
=2600÷
,4 5
=3250(米);
答:去年修路3250米.