$\dfrac{91}{114}$ in simplest form is

1. $\dfrac{13}{8}$

2. $\dfrac{7}{8}$

3. $\dfrac{91}{114}$

4. $\dfrac{9}{13}$

$\dfrac{117}{143}$ in simplest form is

1. $\dfrac{117}{143}$

2. $\dfrac{9}{11}$

3. $\dfrac{13}{11}$

4. $\dfrac{9}{13}$

If $\dfrac{3}{x}$ is equivalent to $\dfrac{45}{60}$, then the value of x is

1. 4

2. 5

3. 6

4. 20

Which of the following are the like fractions?

1. $\dfrac{2}{3}, \dfrac{2}{5}, \dfrac{2}{7}, \dfrac{2}{9}$

2. $\dfrac{2}{3}, \dfrac{3}{4}, \dfrac{4}{5}, \dfrac{5}{6}$

3. $\dfrac{1}{5}, \dfrac{2}{5}, \dfrac{3}{5}, \dfrac{4}{5}$

4. none of these