Answer: The answer is
![(13)/(20).](https://img.qammunity.org/2020/formulas/mathematics/high-school/r7r51lockmmltu75f04bfr5kus2knzuzde.png)
Step-by-step explanation: Given that Lee and Maya are collecting leaves for an art project. Let'x' be the total number of leaves needed in the project.
Then, the number of leaves collected by Lee is given by
![L_\ell=(25)/(100)x,](https://img.qammunity.org/2020/formulas/mathematics/high-school/r6fobkfd8zqydjvq8880rn04cvt32l3e10.png)
and the fraction of the leaves collected by Maya is given by
![M_\ell=(4)/(10)x.](https://img.qammunity.org/2020/formulas/mathematics/high-school/ybfqotomt42e4lpo4hjvm09hw42x9ehzb7.png)
Therefore, the total number of leaves collected by Lee and Maya altogether is
![L=L_\ell+M_\ell=(25)/(100)x+(4)/(10)x=(25+40)/(100)x=(65)/(100)x=(13)/(20)x.](https://img.qammunity.org/2020/formulas/mathematics/high-school/9qu3h2nb3j8rt5vkbwzr2iba108e41rgqe.png)
Thus, the total fraction of the leaves collected by Lee and Maya is
![(13)/(20).](https://img.qammunity.org/2020/formulas/mathematics/high-school/r7r51lockmmltu75f04bfr5kus2knzuzde.png)