The fraction that's left to read in the book is 3/8.
From the information given, it should be noted that Tim has 5/10 of a book left to read for school. Tim read 1/8 of a book on Monday.
Therefore, the fraction that will be left to read will be:
= 5/10 - (1/8)
= 20/40 - 5/40
= 15/40
= 3/8.
The fraction that is left will be 3/8.
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