0.75=12÷________=9:________=________%

16    12    75
分析:解決此題關(guān)鍵在于0.75,0.75可改寫成75%,0.75也可改寫成,也可改寫成3:4,還可改寫成3÷4,進一步利用商不變的規(guī)律改寫成12÷16.
解答:0.75=75%=
=3÷4=(3×4)÷(4×4)=12÷16,
=3:4=(3×3):(4×3)=9:12,
所0.75=12÷16=9:12=75%,
故答案為:16,12,75.
點評:此題考查小數(shù)、分數(shù)、百分數(shù)之間的轉(zhuǎn)化,根據(jù)它們之間的關(guān)系和性質(zhì)進行轉(zhuǎn)化即可.
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