Answer: (For the first One)
 1 1 
5 ---- . 5 -----
 7 7
36 36 1296 22 5 
----- . ------- = ----------- = 26 ---------- = 2 ---------- 
 7 7 49 49 49
Explanation:
First you want to change you mixed numbers into improper fractions. Once done so, cross multiply if possible. Then, multiply across. Last, simplify.