Question 477208
{{{root(4,(9/8))-root(4,(2/9))}}}



{{{root(4,9)/root(4,8)-root(4,2)/root(4,9)}}}



{{{(root(4,9)*root(4,9))/(root(4,8)*root(4,9))-root(4,2)/root(4,9)}}}




{{{(root(4,9)*root(4,9))/(root(4,8)*root(4,9))-(root(4,2)*root(4,8))/(root(4,8)*root(4,9))}}}



{{{(root(4,9*9))/(root(4,8*9))-(root(4,2*8))/(root(4,8*9))}}}



{{{(root(4,81))/(root(4,72))-(root(4,16))/(root(4,72))}}}



{{{3/(root(4,72))-2/(root(4,72))}}}



{{{(3-2)/(root(4,72))}}}



{{{1/(root(4,72))}}}



{{{(1*root(4,72)*root(4,72)*root(4,72))/(root(4,72)*root(4,72)*root(4,72)*root(4,72))}}}




{{{(1*root(4,72*72*72))/(root(4,72^4))}}}



{{{(12*root(4,18))/(72)}}}



{{{(root(4,18))/(6)}}}



So {{{root(4,(9/8))-root(4,(2/9))=(root(4,18))/(6)}}}