Question

Whats next? Hardest question ever !Whoever answers it correctly should have an IQ level near that of Albert Einstein !This question is owned by me!It is no a copy cat!Good Luck !
Pattern-
2/1, 1/1, 8/27, 1/16, x
Whats 'x' ?
Can you answer it correctly? Best of Luck !
In the answers also type the amount of time you had taken to answer this question!

Answer 1

Conversion: 16 3/8 = 16 · 8 + 38 = 1318Conversion: 9 5/8 = 9 · 8 + 58 = 778Subtract: 1318 - 778 = 131 - 778 = 548 = 274
The common denominator you can calculate as the least common multiple of the both denominators - LCM(8, 8) = 8