cant see 1 & 5 ...will answer the rest ..
2. => 2/535
=> to multiply fractions we multiply the numerators ( top numbers ) with each other and the denominators (bottom numbers ) also the same way ...
=>here we have 2/5 and 35 ...35 has a denominator which is 1 ...
=> so 2/535/1 = 70/5 => 14 ..
3.=> 5/64
=>same way ...54/6 => 20/6 => 10/3 => 3 1/3
4.=> 7/16 8
=> 78/16 => 56/16 => 7/2 => 3 1/2 ..
hope u can do the others also now ...
Hope it helps !!!