将0.243(243循环)*0.325233(25233循环)乘积化为小数第2013位是多少
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因为0.243(243循环)*0.325233(25233循环)
=243/999*(3/10+25233/999990)
=243/999*(299997/999990+25233/999990)
=9/37*10841/33333
=97569/1233321
=7911/99999
=0.07911 (07911循环)
2013÷5=402……3
所以将0.243(243循环)*0.325233(25233循环)乘积化为小数,小数点后第2013位是9
以上为参考