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