Answer:
1/6
Explanation:
The fractions of his lines will he have left to memorize is calculated as:
Number of lines he has to memorize - Number of line he memorized today
Number of lines he has to memorize = 1/2
Number of line he memorized today = 1/3
Hence,
= 1/2 - 1/3
Lowest Common Denominator = 6
= 3 - 2/6
= 1/6