128
343 out of 512 as a fraction is 343/512 and the fraction 343/512 cannot be reduced any further.
Yes: 12 over 512 (12/512) = 3/128
512 × 4 = 2048
128
256 over 512 is 1 over 2, or a half.
512/4 = 256/2 = 128
NO
hcf(324, 512) = 4 324 = 2² x 3⁴ 512 = 2⁹ hcf = 2² = 4
910/512 = 455/256
It is: 72/512 = 9/64
448 over 512 in simplest form is 7/8