Answer:
Okay, I am so sorry if this is late! The answer would be 13/20. And of course, I'll explain how I got it.
Step-by-step explanation:
What fraction of the group’s video games is either at Jerome’s house or Mario’s house?
The information the I have given in the question is that Jerome has 1/4 of the group's video games at his house and Mario has 2/5 of the group's video games at his house.
Here are the steps I used to find my answer:
1. Find the common denominator of 4 and 5: 20
2. 1/4 + 2/5 =
3. (1*5/4*5) + (2*4/5*4) =
4. 5/20 + 8/20 =
5. 13/20
Therefor, 13/20 of the group's video games are at either Jerome's house or Mario's house.
To check my answer, I went over my steps and did them once more. I got the same answer both times, this shows that my answer is reasonable.
Hope this helps!