The total number of miles Mary walked is 8 1/8.
Given that, Mary walked [tex]2\frac{1}{4}[/tex] miles around the park. In the afternoon, she walked another [tex]5\frac{7}{8}[/tex] miles
We need to find the total distance walked by Mary.
Step I: Add the whole numbers together.
Step II: We take L.C.M. of the denominators and change the fractions into like fractions.
Step III: We add the like fractions and express the sum to its simplest form.
Now, [tex]2\frac{1}{4}+5\frac{7}{8}[/tex]=(2+5)(1/4 + 7/8)
=7 (2/8 + 7/8)
=7 9/8
=8 1/8
Therefore, the total number of miles Mary walked is 8 1/8.
To learn more about the addition of fractions visit:
https://brainly.com/question/17544795.
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