Question

225
729
25
144
응
16
81

Answer 1

Answer: 5/16

Explanation:

For this question, note that:

`√(16)=4\\ \\ √(25)=5 \\\\√(81)=9\\\\√(144)=12\\\\√(225)=15\\\\√(729)=27`

This means we can rewrite the given expression as:

`\left((15)/(27)-(5)/(12) \right) / (4)/(9)\\\\=\left((5)/(9)-(5)/(12) \right) / (4)/(9)\\\\=\left(((5)(12)-(5)(9))/((9)(12)) \right) / (4)/(9)\\\\=(15)/(108) / (4)/(9)\\\\=(5)/(36) / (4)/(9)\\\\=(5)/(36) * (9)/(4)\\\\=(45)/(144)\\\\=\boxed{(5)/(16)}`