8 years
<h3>
Further explanation</h3>
<u>Given:</u>
Sara just turned 18 years old.
She spent
of her life living in Rochester, NY.
<u>Question:</u>
How many years did Sara live in Rochester?
<u>The Process:</u>
From the information above, we make a suitable diagram as follows:

Four of the nine parts are the question. The nine full parts below are Sara's ages.

Let us calculate how many years did Sara live in Rochester.

We crossed out 9 and 18.

Thus Sara has lived in Rochester for 
- - - - - - - - - -
Quick Steps:



<h3>Learn more</h3>
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Keywords: Sara, just turned 18 years old, she spent ⁴/₉, her life, living in Rochester, NY, how many, live in Rochester