6/11除以7的商,加上5/11的1/7,和是多少?
问题描述:
6/11除以7的商,加上5/11的1/7,和是多少?
答
6/11÷7+5/11×1/7
=6/11×1/7+5/11×1/7
=(6/11+5/11)×1/7
=1×1/7
=1/7