fern has read 5/7 pages OF his 98 page book. I was taught that OF can mean to multiply. so multiply 5/7 by 98 and you get 70. 70 is not the answer though . That is only how much he has rrad . and the question asks how much he has LEFT. So Now subtract 98-70 . which equals 28 fern has 28 more pages left.
