题目内容
场地上来了5只白兔和2只灰兔,灰兔占这群兔的______;后来又来了一只灰兔,这时灰兔占这群兔的______.
2÷(2+5)
=2÷7,
=
;
(2+1)÷(5+2+1)
=3÷8,
=
.
即场地上来了5只白兔和2只灰兔,灰兔占这群兔的
;后来又来了一只灰兔,这时灰兔占这群兔的
.
故答案为:
、
.
=2÷7,
=
2 |
7 |
(2+1)÷(5+2+1)
=3÷8,
=
3 |
8 |
即场地上来了5只白兔和2只灰兔,灰兔占这群兔的
2 |
7 |
3 |
8 |
故答案为:
2 |
7 |
3 |
8 |
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