Use HCF to prove that the following numbers are coprimes.

$1365$ and $2057$.

Reduce the following fraction to the lowest term.

$\frac{306}{414}$

Reduce the following fraction to the lowest term.

$\frac{559}{989}$

Reduce the following fraction to the lowest term.

$\frac{611}{1457}$

Reduce the following fraction to the lowest term.

$\frac{350}{518}$