Answer:
What you need to do, in this situation, is simplify the equation-- so it is able to be added" and solve
Explanation:
First, find the lcm of 15 and 10. This value is 30 because 15*2 is 30 and 10*3 is 30.
Next, convert the two fractions so that each of them has a denominator of 30.
8 7/15 = 8 14/30
1 7/10 = 1 21/30
Clean up your values:
8 14/30 + 1 21/30
Finally, solve for d, distance (Hint: distance can never be negative; that is why absolute value exists)
You will result with 9 35/30
Simplify this and you will receive 10 5/30
Is this relatively prime? No: we need to simplify again
Final Answer: 10 1/6 miles