no, it has no common factor
The cube root of 8 is 2, and the cube root of 343 is 7. Therefore, the cube root of 8 over 343 is 2 over 7.
6 over 8 reduced = 3/4
The reduced fraction for 8 over 48 is: 1/6
8 = 8/1
343 out of 512 as a fraction is 343/512 and the fraction 343/512 cannot be reduced any further.
1/8
8 over 8 is 1 over 100, or a whole, or 100% of something.
No.
No.
No.
12/8 = 3/2 when reduced
No.