Answer:
Christian reads 3/8th of a book a week.
Step-by-step explanation:
In order to find this amount, we need to multiply both numbers by a factor that will get the weeks to equal 1. In order to get 2/3 to equal 1, we need to multiply by 3/2 (the reciprocal). Now knowing this, we can multiply the number of books by that same fraction to get the amount of books in one week.
1/4 * 3/2 = 3/8