Question

by the time vince left the library he had 7/8 of his new book left to read ge read 1/10 of his book on the way home and 2/5 of the book after dinner what fraction of the book does he have left to read

Answer 1

We have the next information

When he left the library he read 8/8-7/8= 1/8

then he read 1/10

after dinner, he read 2/5

First, we need to sum the fraction of the book he read

`(1)/(8)+(1)/(10)+(2)/(5)`

we need to have the same denominator in order to sum the fractions

`(5+4+16)/(40)=(25)/(40)=(5)/(8)`

the book complete represent 8/8 so we need to subtract 5/8 from the fraction of the complete book

`(8)/(8)-(5)/(8)=(3)/(8)`

the fraction of the book does he have left to read is 3/8