Răspuns:
300₍₄₎
Explicație pas cu pas:
10111₍₂₎ + 221₍₃₎ = ?₍₄₎
10111₍₂₎ = 1·2⁴+0·2³+1·2²+1·2¹+1·2⁰ = 16+0+4+2+1 = 23₍₁₀₎
221₍₃₎ = 2·3²+2·3¹+1·3⁰ = 18+6+1 = 25₍₁₀₎
23₍₁₀₎+25₍₁₀₎ = 48₍₁₀₎
48₍₁₀₎ = ?₍₄₎
48:4 = 12 rest 0
12:4 = 3 rest 0
3:4 = 0 rest 3 =>
48₍₁₀₎ = 300₍₄₎
