12个5/6与12个5/6的和,除以75与4/5的积,商是多少?
问题描述:
12个5/6与12个5/6的和,除以75与4/5的积,商是多少?
答
(12*5/6+12*5/6)/(75*4/5)
=(10+10)/60
=20/60
=1/3