18的5/6除以5.6与0.4的和,商是多少?1/2与1/3的和除以它们的差,商是多少?

问题描述:

18的5/6除以5.6与0.4的和,商是多少?1/2与1/3的和除以它们的差,商是多少?

(18 *5/6)/(5.6+0.4)=15/6=2.5
(1/2 +1/3)/(1/2 -1/3)
=(5/6 )/(1/6)
=5