Answer:
[tex]3\frac{1}{8}\ mi[/tex]
Step-by-step explanation:
we know that
Kyle walks 2 1/4 miles
Trinity walks 1 3/8 miles less than Kyle
Convert mixed number to an improper fraction
[tex]2\frac{1}{4}\ mi= 2+\frac{1}{4}=\frac{2*4+1}{4}=\frac{9}{4}\ mi[/tex]
[tex]1\frac{3}{8}\ mi= 1+\frac{3}{8}=\frac{1*8+3}{8}=\frac{11}{8}\ mi[/tex]
To find out the total distance they walk each morning, add the distance Kyle walks plus the distance Trinitry walks.
The distance Kyle walks is 9/4 miles
Find out the the distance Trinitry walks
Subtract 11/8 miles from the distance Kyle walks
[tex]\frac{9}{4}\ mi-\frac{11}{8}\ mi=\frac{2*9-11}{8}=\frac{7}{8}\ mi[/tex]
Adds the distances
[tex]\frac{9}{4}\ mi+\frac{7}{8}\ mi=\frac{2*9+7}{8}=\frac{25}{8}\ mi[/tex]
Convert to mixed number
[tex]\frac{25}{8}\ mi=\frac{24}{8}+\frac{1}{8}\ mi=3\frac{1}{8}\ mi[/tex]