Well, you have to read 10 1/2 pages and you have read 1/3 so ask your self...Self what is 1/3 of 10 1/2 pages. The key word of tells you to multiply the two numbers to find the answer. So [tex]10\frac{1}{2} \times \frac{1}{3} = \frac{7}{2} = 3.5 pages [/tex]