化简比. 39:13= 64:8= 0.6:0.3=
化简比.39:13=64:8=0.6:0.3=16:29=...
化简比. 39:13= 64:8= 0.6:0.3= 1 6 : 2 9 =
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浩星微熹sI
2014-10-01
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39:13, =(39÷13):(13÷113), =3:1;
64:8, =(64÷8):(8÷8), =8:1;
0.6:0.3, =(0.6÷0.3):(0.3÷0.3,), =2:1;
: , =( ×18 ):( ×18 ), =3:4. |
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