What will be the vulgar fraction of 0.75

Answer: Option A

Explanation:

$$\begin{aligned} 6.\overline{46} = 6 + 0.\overline{46} = 6 + \frac{46}{99} = 6\frac{46}{99} = \frac{640}{99} \end{aligned}$$

Answer: Option C

Explanation:

9/11 = .818 , 8/9 = .88 , 3/5 = .6, 4/7 = .571

So order is 8/9 > 9/11 > 3/5 > 4/7

Answer: Option D

Answer: Option B

Explanation:

$$\begin{aligned} \frac{3.6 \times 0.48 \times 2.50}{0.12 \times 0.09 \times 0.5} \end{aligned}$$

$$\begin{aligned} = \frac{36 \times 48 \times 250}{12 \times 9 \times 5} = 800 \end{aligned}$$

Answer: Option A