體操隊(duì)里女隊(duì)員的人數(shù)占60%,男隊(duì)員和女隊(duì)員人數(shù)的最簡(jiǎn)單的整數(shù)比是________;如果體操隊(duì)有隊(duì)員50人,女隊(duì)員有________人.

2:3    30
分析:把體操隊(duì)的隊(duì)員總?cè)藬?shù)看作單位“1”,女隊(duì)員的人數(shù)占60%,則男隊(duì)員占(1-60%),進(jìn)而根據(jù)題意進(jìn)行比即可;
求女隊(duì)員的人數(shù),根據(jù)一個(gè)數(shù)乘分?jǐn)?shù)的意義,用乘法解答即可.
解答:(1-60%):60%=2:3;
50×60%=30(人);
答:男隊(duì)員和女隊(duì)員人數(shù)的最簡(jiǎn)單的整數(shù)比是2:3,女隊(duì)員有30人;
故答案為:2:3,30.
點(diǎn)評(píng):此題考查了比的意義,判斷出單位“1”,求出男隊(duì)員占總?cè)藬?shù)的(1-60%),是解答此題的關(guān)鍵;用到的知識(shí)點(diǎn):一個(gè)數(shù)乘分?jǐn)?shù)的意義.
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