Answer:
of Steph's annual income is from her full-time job.
Explanation:
Suppose, Steph's annual income is
![x](https://img.qammunity.org/2019/formulas/mathematics/college/lhtxftojjkzsmo3o2h4ilq8naohracejui.png)
Given that, 80% of Steph's annual income is from her full-time job.
So, the amount of income from her full time job will be:
![(x* 80\%)= (x*(80)/(100))= 0.8x](https://img.qammunity.org/2019/formulas/mathematics/high-school/m229d490gpmaacqe0k5v6lx6gl0dhfmnkb.png)
Now, for finding the income from her full time job as a fraction of Steph's annual income, we just need to divide "income from full time job" by "total annual income".
So, the fraction will be:
![(0.8x)/(x)= 0.8 =(8)/(10)= (4)/(5)](https://img.qammunity.org/2019/formulas/mathematics/high-school/xh6uuz5ovu3x0eyo6yksf8vao4t9t7j7ca.png)
That means,
of Steph's annual income is from her full-time job.