A^(3/4)×b^(5/24)÷(a^(5/12)×b^(1/8) )
a^(3/4)×b^(5/24)÷(a^(5/12)×b^(1/8) )=a^(3/4)×b^(5/24)×a^(-5/12)×b^(-1/8)=
=a^(3/4-5/12)×b^(5/24-1/8)=a^(9/12-5/12)×b^(5/24-3/24)=
=a^(4/12)×b^(2/24)=a^(1/3)×b^(1/12)
отв: a^(1/3)×b^(1/12)