一個(gè)分?jǐn)?shù),分子是負(fù)數(shù),分母也是負(fù)數(shù),這個(gè)分?jǐn)?shù)是正數(shù)還是負(fù)數(shù)還是沒(méi)有這種數(shù)?例如：-5/-3

數(shù)學(xué)人氣：760 ℃時(shí)間：2020-07-11 00:14:22

優(yōu)質(zhì)解答

一個(gè)分?jǐn)?shù),分子是負(fù)數(shù),分母也是負(fù)數(shù)
這個(gè)數(shù)是正數(shù)
負(fù)數(shù)除以負(fù)數(shù)是正數(shù)
負(fù)數(shù)乘以負(fù)數(shù)是正數(shù)
負(fù)數(shù)乘以正數(shù)是負(fù)數(shù)
負(fù)數(shù)除以正數(shù)是負(fù)數(shù)
正數(shù)除以負(fù)數(shù)是負(fù)數(shù)
符號(hào)相同的數(shù)(同正或同負(fù))相乘除結(jié)果為正數(shù)
符號(hào)相反的數(shù)相乘除結(jié)果為負(fù)數(shù)