Perform rounding on the following fractional binary numbers, use the bit positions in italics to

determine rounding $($use the rightmost $3$ bits$)$:

Round to positive infinity: $+0\mathrm{.}100101110$ binary

a$)$ Round to negative infinity: $-0\mathrm{.}001111001$ binary

b$)$ Unbiased to the nearest even: $+0\mathrm{.}100101100$ binary

c$)$ Unbiased to the nearest even: $-0\mathrm{.}100100110$ binary