To answer this we need to get the same denominator for each. So we need to find a LCD. I think 30. Then we change them all to have a denominator of 30 1/6=5/30 2/5=12/30 1/3=10/30 Add it up 10+12+5=27 so 27/30 But than can be simplified Divide by 3 on the top and bottom 9/10 She has read 9/10 of her book Hope this helps! :)
