How do I write 5/2 in word form

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Could someone with number 1 and 2