How many sixths are there in three wholes?

Express the fraction in its simplest form

$\frac{315}{420}$

$\frac{154}{198}$ in the simplest form is $\frac{7}{A}$. Write the value of $A$ in the answer box.

Express the fraction in its simplest form

$\frac{168}{240}$

Find the simplest form of $\frac{320}{480}$ in the form of fraction.

Arrange these fractions in ascending order and write the smallest fraction as the final answer.

$1, \frac{8}{7}, 1\frac{2}{7}, \frac{4}{7}$

Arrange these fractions in ascending order.

$\frac{10}{11}, 1\frac{3}{11}, \frac{7}{11}, 1$

Evaluate the following.

$\frac{3}{5}+\frac{7}{10}$