A city has a book festival each year. There are 100 booths at the festival. 3/10 of the booths are books for children. 20/100 booths sell books for teenagers. Together, what fraction of booths sell books for children and teenagers?
Reflection: How do you feel about the math lesson today?
Confident: I feel like I could teach the class how to do this tomorrow.
Curious: I have some question for my teacher, to understand it fully.
Confused: I didn't understand the lesson and need help, please.