Why does it take 3 copies of 1/6 to show the same amount as 1 copy of 1/2? explain your answer

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Tickets to a science exposition cost $5.75 each for studentd and $7.00 for adults.how many students and adults went if the ticket charge was $42.75

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class