Answer:
2/3
Explanation:
You'll want both expressions to have the same denominator.
Let's make 2/5 into something divided by 15. Since 3*5 will give us 15, we'll multiply both 2 and 5 with 3.
![(2)/(5) =(2*3)/(5*3) =(6)/(15)](https://img.qammunity.org/2021/formulas/mathematics/high-school/1p9n68kj2ccq28zlepppmhuk6p5rqxnvio.png)
Now we can easily add the 2 expressions.
![(6)/(15) + (4)/(15) =(10)/(15)](https://img.qammunity.org/2021/formulas/mathematics/high-school/rxg7jz5ip0b8gwky57j5yu7pbuxt1q3zoe.png)
Now, let's divide both 10 and 15 with 5 to simplify the expression.
![(10)/(15) =(10/5)/(15/5) = (2)/(3)](https://img.qammunity.org/2021/formulas/mathematics/high-school/p5iwmkdm4cmybmsdmlyfjyv5eiiq9qar8p.png)
Answer: 2/3