Question

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？

Answer 1

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．

解答：解：①320÷180=1

7

9

；
答：男工人數(shù)是女工人數(shù)的1

7

9

倍．
②180÷320=

9

16

；
答：女工人數(shù)是男工人數(shù)的

9

16

．
③（320-180）÷180，
=140÷180，
=

7

9

；
答：男工人數(shù)比女工人數(shù)多

7

9

．
④（320-180）÷320，
=140÷320，
=

7

16

；
答：女工人數(shù)比男工人數(shù)少

7

16

．

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