8-2/3-2/15-2/35-2/63-2/99-2/143-2/195-2/256简算

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/14 11:31:49
8-2/3-2/15-2/35-2/63-2/99-2/143-2/195-2/256简算
x @XqW|zzoE=u:UA;J4j7_S3 ~–_?=٤s<6:M5/]2 էȤqUDUq7?s/1R4魫3ٔmQr+IH1Cz,34Wth h#E((#e^ [4cr

8-2/3-2/15-2/35-2/63-2/99-2/143-2/195-2/256简算
8-2/3-2/15-2/35-2/63-2/99-2/143-2/195-2/256简算

8-2/3-2/15-2/35-2/63-2/99-2/143-2/195-2/256简算
最后一个减数应该是2/255吧
原式=8-(3-1)/(1*3)-(5-3)/(3*5)-(7-5)/(5*7)-……-(17-15)/(15*17)
=8-1+1/3-1/3+1/5-1/5+1/7-……-1/15+1/17
=7+1/17
=120/17