某廠有男工320人，女工180人．男工人數(shù)是女工人數(shù)的幾倍？女工人數(shù)是男工人數(shù)的幾分之幾？男工人數(shù)比女工人數(shù)多幾分之幾？女工人數(shù)比男工人數(shù)少幾分之幾？
解：①320÷180=1
；
答：男工人數(shù)是女工人數(shù)的1
倍．
②180÷320=
；
答：女工人數(shù)是男工人數(shù)的
．
③（320-180）÷180，
=140÷180，
=
；
答：男工人數(shù)比女工人數(shù)多
．
④（320-180）÷320，
=140÷320，
=
；
答：女工人數(shù)比男工人數(shù)少
．
分析：①用男工人數(shù)除以女工人數(shù)的人數(shù)就是男工人數(shù)是女工人數(shù)的幾倍；
②女工人數(shù)除以男工人數(shù)就是女工人數(shù)是男工人數(shù)的幾分之幾；
③男工人數(shù)比女工人數(shù)多的人數(shù)除以女工人數(shù)，就是男工人數(shù)比女工人數(shù)多幾分之幾．
④女工人數(shù)比男工人數(shù)少的人數(shù)除以男工人數(shù)，就是女工人數(shù)比男工人數(shù)少幾分之幾．
點評：本題運用分?jǐn)?shù)除法的意義進(jìn)行解答即可．
