Why is it helpful to find different representations of the same number?

please help due 3/27/2020

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a