以下几个算式的过程谁知道

根号（八分之一）加根号18
(1/8)^0.5+(18)^0.5
=(2^0.5)/4+3*(2^0.5)
=(2^0.5)(1/4+3)
=(2^0.5*13)/4

根号5分之5加根号（4分之5）减四分之一乘以根号80
(5/(5^0.5))+(5/4)^0.5-(1/4)*(80^0.5)
=(5^0.5)+(5^0.5)/2-(1/4)*4*(5^0.5)
=(5^0.5)+(5^0.5)/2-(5^0.5)
=(5^0.5)/2

根号（二分之三）乘以（4乘以根号（十二分之一））除以（三分之二根号（二分之三）
(3/2)^0.5*(4*(1/12)^0.5)/(2*(3/2)^0.5/3)
=(3/2)^0.5*(2*(1/3)^0.5)/((2/3)^0.5)
=(3/2)^0.5*(2*(1/3)^0.5)*((3/2)^0.5)
=(3/2)^0.5*(2*((1/2)^0.5)
=(3/2)^0.5*(2^0.5)
=3^0.5