The sum of the first $45$ natural numbers is:

What is the sum of all prime numbers from $60$ to $80$?

$63 + 371 \div 7 = ?$

If $1$ is added to the denominator of a fraction,the fraction becomes $\frac{1}{2}$. If $1$ is added to the numerator,the fraction becomes $1$. The fraction is

When a number is divided by $56,$ the remainder is $29.$ If the same number is divided by $8,$ then the remainder will be:

Which fraction among $\frac{3}{7}, \frac{5}{11}$,and $\frac{6}{13}$ is the largest?