multiply 5/6 times 24/25
5 24 1 4 4 ---- x ---- = ----- x ---- = ---- 6 25 1 5 5
\(\dfrac{ ot5^1}{ ot6_1}\cdot\dfrac{ ot24^4}{ ot25_5}=\dfrac{1}{1}\cdot\dfrac{4}{5}=\boxed{\frac{4}{5}}\)