Lately ive been wondering- whats 1 + 1 :)

In two fractions have the same denominator but different numerators,which fraction is greater? give an example

1foot = 12 inches; 1 yard = 3 feet

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.