$$6\frac{3}{8}-3\frac{1}{16}+5\frac{1}{8}=?$$

Option D:

There can be many ways of doing it. The best way in this case would be solving the integral and fractional part separately.

So, we have Integral part as $$6 - 3 + 5$$ which is equal to $$8$$

And, Fractional part $$\frac{3}{8}$$ - $$\frac{1}{16}$$ + $$\frac{1}{8}$$ = $$\frac{6}{16}$$ - $$\frac{1}{16}$$ + $$\frac{2}{16}$$ (Taking 16 as common denominator)

which is equal to $$\frac{7}{16}$$

Therefore, required answer = $$8\frac{7}{16}$$