Question

8/9*【15/16*（7/16-1/4）/1/2】=多少?还有136-136*4/5-16/5=多少?（能简便就简便）

Answer 1

8/9*【15/16*（7/16-1/4）/1/2】

=(8/9)*【(15/16)*（7/16-4/16）×2】

=(8/9)*(15/8)*(3/16)

=5/16

.

36-136*4/5-16/5

=36 - 136*(1- 1/5) - 16/5

=36 - 136 + 136/5 -16/5

=-100 + 120/5

=-100+ 24

=-76