问题
填空题
在○里填上“>”、“<”或“=”号. 20:40○40:209.3:0.3○3.1:0.125:100○
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答案
①20:40
=20÷40
=0.5,
40:20
=40÷20
=2,
20:40<40:20;
②9.3:0.3
=9.3÷0.3
=31,
3.1:0.1
=3.1÷0.1
=31,
9.3:0.3=3.1:0.1;
③25:100
=25÷100
=
,1 4
25:100=
;1 4
④1.6:9=1.6÷9,
1.6:8=1.6÷8,
9>8,
1.6:9<1.6:8.
故答案为:<,=,=,<.