=6/17x5/13-5/17x(5/13+1/13)
=6/17x5/13-5/17x5/13+5/17x1/13
=5/13x(6/17-5/17)+5/17x1/13
=5/13x1/17+5/17x1/13
后面没简便了,你自己算吧,我已经尽量了,如果你有时间你可以用刚刚我的办法再做下去.
望采纳(*^__^*) 嘻嘻……
=6/17x5/13-5/17x(5/13+1/13)
=6/17x5/13-5/17x5/13+5/17x1/13
=5/13x(6/17-5/17)+5/17x1/13
=5/13x1/17+5/17x1/13
后面没简便了,你自己算吧,我已经尽量了,如果你有时间你可以用刚刚我的办法再做下去.
望采纳(*^__^*) 嘻嘻……