Answer: not a black marble: 4/5
Red marble: 3/10
Step-by-step explanation: Count the number of marbles.
5+2+3=10
The total number of marbles that aren’t black are 8 out of 10. The fraction is 8/10. It can be simplified to 4/5.
The number of red marbles is 3 out of 10. As a fraction, it’s 3/10.