Question

简便运算：256×254/255+254×1/255拜托了各位

Answer 1

他的不对!应该这样：256×254/255+254×1/255 =（255+1）×254/255+（255-1）×1/255 应该对了 =255×254/255+1×254/255+255×1/255-1×1/255 =254+254/255+1-1/255 结果=255又253/255