The question is incomplete as the total number I crosswords required for completion isn't given :
Hypothetically, if the total Number of cross words is taken as x ;
Answer:
2 /x
Explanation:
The number of crosswords John did = 1 + 1 = 2
Total number of cross words = x
Fraction of crosswords John did :
2 / total number of crosswords
2 / x
Kindly substitute the actual number of crosswords for X to obtain exact answer.