Can someone please answer these math questions? I would really appreciate it!

a) 5/3×?/?= 5/6

b) 5/3÷?/?= 10/9

c) 12%×?/?= 3/4

d) 12/7×?/?= 18/35

e) ?/?÷8/11= 22/7

f) 120%÷?/?= 14/15

?/? means the missing fraction to the equation.