Answer:
7 [tex]\frac{1}{2}[/tex] miles
Step-by-step explanation:
The problem above is under the topic, "Subtracting Mixed Numbers with Similar Fractions."
In order to find the answer, you have to subtract the whole number parts first.
12-5 = 7
Then, you have to subtract the fractional parts. All you have to do is to get the difference of the numerators and copy the denominator.
7/8 - 3/8 = [tex]\frac{4}{8}[/tex]
Therefore, 12 [tex]\frac{7}{8}[/tex] - 5 [tex]\frac{3}{8}[/tex] = 7 [tex]\frac{4}{8}[/tex] miles
Let's simplify: 7 [tex]\frac{1}{2}[/tex] miles
David biked 7 [tex]\frac{1}{2}[/tex] miles farther on Tuesday than on Wednesday.