13/17-(5/17+1/10) 1/5+(5/6-13/18) 此两道题能用简便运算吗?_数学解答

13/17-(5/17+1/10) 1/5+(5/6-13/18) 此两道题能用简便运算吗?

人气：304 ℃　时间：2019-10-17 08:17:28

解答

13/17-(5/17+1/10)
=13/17-5/17-1/10
=8/17-1/10
=63/170
1/5+(5/6-13/18)
=1/5+1/9
=14/45