问题
解答题
场地上来了5只母鸡和2只公鸡,公鸡占这群鸡的______;后来跑掉了一只母鸡,这时母鸡占这群鸡的______.
答案
2÷(5+2)
=2÷7
=
;2 7
(5-1)÷(5-1+2)
=4÷6
=
.2 3
故答案为:
;2 7
.2 3
场地上来了5只母鸡和2只公鸡,公鸡占这群鸡的______;后来跑掉了一只母鸡,这时母鸡占这群鸡的______.
2÷(5+2)
=2÷7
=
;2 7
(5-1)÷(5-1+2)
=4÷6
=
.2 3
故答案为:
;2 7
.2 3