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( ):12=0.75=6:( )=36分之( )
人气:483 ℃ 时间:2020-02-06 03:32:28
解答
( 9):12=0.75=6:( 8)=36分之(27 )

:0.75=3/4
= 3×3/4×3
=9/12
=3×2/4×2
=3×9/4×9
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