Answer :
Final answer:
The fraction 18/20 simplifies to 9/10 by dividing both the numerator and the denominator by their greatest common divisor, which is 2.
Therefore, the correct option is d.
Explanation:
To simplify the fraction 18/20, one should look for the greatest common divisor (GCD) that both numbers in the fraction share. In this case, both 18 and 20 can be divided by 2.
Therefore, we divide the numerator (18) and the denominator (20) by 2 to simplify the fraction.
18 ÷ 2 = 9
20 ÷ 2 = 10
After dividing both the numerator and the denominator by 2, the simplified form of 18/20 is 9/10.
