Final answer:
To find the quotient of 9/10 and 2/3, multiply the first fraction by the reciprocal of the second fraction.
Step-by-step explanation:
To find the quotient of 9/10 and 2/3, we need to divide the first fraction by the second fraction. To do this, we can multiply the first fraction by the reciprocal of the second fraction. The reciprocal of 2/3 is 3/2. So, multiplying 9/10 by 3/2 gives us (9/10) x (3/2) = (27/20).
Therefore, the quotient of 9/10 and 2/3 is 27/20. Therefore, the correct answer is option d) 27/20.