题目内容
在○里填上“>”、“<”或“=”.
○
○
○
○
○0.75
○0.35.
| 5 |
| 7 |
| 3 |
| 7 |
| 5 |
| 3 |
| 7 |
| 3 |
| 3 |
| 5 |
| 29 |
| 50 |
| 8 |
| 40 |
| 1 |
| 6 |
| 3 |
| 4 |
| 3 |
| 8 |
分析:同分母分数大小比较,分子大的分数就大;异分母分数大小比较,先通分化成同分母分数,再比较大小即可;有小数的,将小数化成分数再比较大小即可.
解答:解:(1)
>
;
(2)
<
;
(3)
=
=
,
>
,
则
>
;
(4)
=
=
,
=
=
,
>
,
则
>
;
(5)0.75=
=
,
则
=0.75;
(6)0.35=
=
=
=
,
=
=
.
<
,
则
>0.35;
故答案为:>、<、>、>、=、>.
| 5 |
| 7 |
| 3 |
| 7 |
(2)
| 5 |
| 3 |
| 7 |
| 3 |
(3)
| 3 |
| 5 |
| 3×10 |
| 5×10 |
| 30 |
| 50 |
| 30 |
| 50 |
| 29 |
| 50 |
则
| 3 |
| 5 |
| 29 |
| 50 |
(4)
| 8 |
| 40 |
| 8×3 |
| 40×3 |
| 24 |
| 120 |
| 1 |
| 6 |
| 1×20 |
| 6×20 |
| 20 |
| 120 |
| 24 |
| 120 |
| 20 |
| 120 |
则
| 8 |
| 40 |
| 1 |
| 6 |
(5)0.75=
| 75 |
| 100 |
| 3 |
| 4 |
则
| 3 |
| 4 |
(6)0.35=
| 35 |
| 100 |
| 7 |
| 20 |
| 7×2 |
| 20×2 |
| 14 |
| 40 |
| 3 |
| 8 |
| 3×5 |
| 8×5 |
| 15 |
| 40 |
| 14 |
| 40 |
| 15 |
| 40 |
则
| 3 |
| 8 |
故答案为:>、<、>、>、=、>.
点评:此题主要考查同分母及异分母大小的比较方法.
练习册系列答案
相关题目