Answer:

Explanation:
Given:


Required:
Fraction of the circuit that is straight section
To solve this, we simply divide the length of the straight section by the total length of the circuit;
This is done as follows;

Convert both fractions to improper fractions

Change division sign (/) to multiplication (*)

Combine to form a single fraction


Divide numerator and denominator by 10

Hence, the fraction of the straight section is;
