(a)
(i) \(\frac{1}{2}\) × 24 = 12
(ii) \(\frac{1}{2}\) × 46 = 23
(b)
(i) \(\frac{2}{3}\) × 18 = 12
(ii) \(\frac{2}{3}\) × 27 = 18
(c)
(i) \(\frac{3}{4}\) × 16 = 12
(ii) \(\frac{3}{4}\) × 36 = 27
(d)
(i) \(\frac{4}{5}\) × 20 = 16
(ii) \(\frac{4}{5}\)× 35 = 28