145乘以929292分母292929
145*929292/292929 -
你好：145×（929292/292929）460×(458/459) =145×92×10101/(29×10101)-(459+1)×458/459 =145×92/29-（459×458/459+458/459）=5×
145×（929292/292929）460×(458/459)=145×92×10101/(29×10101)-(459+1)×458/459 =145×92/29-（459×458/459+458/459）5×92-458-458/459 =460-458-458/459 =2-458/459 =1又1/459
你好：145×（929292/292929）460×(458/459) =145×92×10101/(29×10101)-(459+1)×458/459 =145×92/29-（459×458/459+458/459）=5×
145×（929292/292929）460×(458/459)=145×92×10101/(29×10101)-(459+1)×458/459 =145×92/29-（459×458/459+458/459）5×92-458-458/459 =460-458-458/459 =2-458/459 =1又1/459
原式=145*（92*10101）(29*10101)-460*458/459 =460-460*458/459 =460*(1-458/459) =460*1/459 =1又1/459
145×929292/292929-460×458/459=145x(92x10101)/(29x10101)-460x(1-1/459)=145x92/29 -460x1+460x1/459=5x92-460+460/459=460-460+460/459=460/459如果本题有什么不明白可以追问，如果满意请点击“选为满意答案”后面会介绍。
145*929292/292929-460*458/459 -
这个问题主要是化简计算分子和分母。如929292可换算为92*10101，而292929可换算为29*10101.且460*458/459可看成460（1-1/459）那么145*929292/292929-460*458/459 =145*92*10101/29*10101-460（1-1/459）145*92/29-460+460/459 =92*5-460+460/459=460/459.计算该类计算式主要是就分子等会说。
145*929292/292929-460*458/459=145*92*10101/29*10101-460*（1-1/459）460-460+460/459=1又459分之1
145*(929292/292929)+460*(458/459) -
=145*92*10101/（29*10101）（459+1）（459-1）459 =145*92/29+(459^2-1)/459 =5*92+459-1/459 =460+459-1/459 =919-1/459 //思路应该就是这样，
计算器145*292929/929292-460*459/458 = -415.2978450731
计算! 145 * 292929/929292 - 460 * 458 / 459 -
=460-460*458/459 =460-210680/459 =211140/459-210680/459 =460/459
929292×29=92×29×10101 929292×29/(110+111+112)×37.5 =92×29×10101/(3×111)×75/2 =92×29×10101×25/(2×111)292929×92-929292×29/(110+111+112)×37.5 =92×29×10101×[1-25/(2×111)]=92×29×10101×197/(2×111)=92×29×197×91/2 =(30-1)×(200-3)等我继续说。