Final answer:
In signed magnitude binary arithmetic, you can represent positive numbers in binary form as usual. To represent negative numbers, use a sign bit, with 0 for positive and 1 for negative. To find the sum of 75 and 46, add their binary representations.
Step-by-step explanation:
In signed magnitude binary arithmetic, positive numbers are represented as usual in binary form. To represent negative numbers, we use a sign bit (leftmost bit) to indicate the sign, with 0 representing positive and 1 representing negative. The remaining bits represent the magnitude of the number. To find the sum of 75 and 46, we can add their binary representations:
75 in binary is 01001011
46 in binary is 00101110
Adding these two binary numbers gives us 01111001, which is the binary representation of 121. Since the sign bit is 0, the actual value is positive.
Therefore, the sum of 75 and 46 in signed magnitude binary arithmetic is 121.