如题所述
第1个回答 2015-09-21
第2个回答 2015-09-21
第3个回答 推荐于2016-12-05
5/17x6/19+5/19x13/17
=5/17x6/19+5/17x13/19
=5/17x(6/19+13/19)
=5/17x1
=5/17本回答被提问者采纳
=5/17x6/19+5/17x13/19
=5/17x(6/19+13/19)
=5/17x1
=5/17本回答被提问者采纳
第4个回答 2015-09-21
5/17x6/19+5/19x13/17
=1/17x30/19+65/19x1/17
=1/17x(30/19+65/19)
=1/17x95/19
=95/323
=1/17x30/19+65/19x1/17
=1/17x(30/19+65/19)
=1/17x95/19
=95/323
