X (<_) -8
(<_) is supposed to be an equal to or greater than sign
10book=30mins
divide 10
1book=3mins
time=(time to read 1 book) times (number of books)
time to read 1 book=3 mins
15 books
15 books=15 times 3mins
15books=45mins
45 mins
Simple, take 7 1/9 and 2 4/5
and convert them
7 1/9=64/9
and
2 4/5=14/5
Find a common denominator
320/45
-
126/45
=194/45
Thus, m=194/45.