11011₂ = 2⁴ + 2³ + 2¹ + 2⁰ = 27
15 + <em>x</em>₂ = 27
<em>x</em>₂ = 12 = 8 + 4 = 2³ + 2² = 1100₂
Answer:
12/18
Step-by-step explanation: