Hi there!
→ [tex]\sqrt {32}[/tex] = 5. 65685425
→ [tex]\dfrac {5. 65685425}{5}[/tex] = 1. 13137085
→ 1. 13137085 + [tex]\sqrt {18}[/tex]
= 1. 13137085 + 4. 24264069 = 5. 37401154
→ [tex]\dfrac {5.37401154}{7}[/tex] = 0. 767715934
Hence,
The required answer is 0. 767715934
~ Hope it helps!