(1):(6分之7-0.375×5分之4)×4分之5
=7/6*5/4-3/8*4/5*5/4
=35/24-9/24
=13/12
(2):5分之22÷10÷0.1
=22/5*1/10*10
=22/5
这可是最先回答的哟.祝进步!