Which fractions use the least common denominator and are equivalent to 3/10 and1/6

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

What is the sum of these mixed numbers 4 2/3+ 3 1/9