9/17×(11/14+11/17)×8/11+5/14

来源:百度知道 编辑:UC知道 时间:2024/05/30 02:28:49
9/17×(11/14+11/17)×8/11+5/14 7点钟之前啊。!
(1/65+1/19)乘13+6除19 SOS!

9×11×1/17×(1/14+1/17)×8/11+5/14

=9×8×31/(14×17)+5×17/(14×17)

=(9×8×31+5×17)/(14×17)

=2317/238

(1/65+1/19)×13+6÷19

=1×13/65+1×13/19+6/19

=1/5+(13/19+6/19)

=1/5+1
=
6/5

9/17×(11/14+11/17)×8/11+5/14
=(9/17×11/14)+(9/17×11/17)×8/11+5/14
=(9/17×11/14×8/11)+(9/17×11/17×8/11)+5/14
=36/119+72/289+5/14
=3677/4046

(1/65+1/19)×13+6÷19
=1/5+1/247+6/19
=642/1235

丫的通分啊~