就脊高旅是提樱凳取相同的公因式23*14/念散39+14*16/39
=14*(23/39+16/39)
=14*39/39
=14*1
=14
你好! 原式=(23+16)*14/39=39*14/39=14. 谢谢采纳!
23*14/39+14*16/39
=1/39*(23*14+14*16)凯坦
=1/39*[14*(23+16)]
=1/39*(液梁14*39)闹孙运
=1/39*39*14
=14
23*14/39+14*16/39
=14/39*(23+16)
=14/39*38
=14