Berat badan rina34 1/2.sedangkan retno 40 1/3 kg.berapa kg berat kedua anak tersebut

74,833 kg ...........

[tex] = 34 \frac{1}{2} + 40 \frac{1}{3} \\ = \frac{67}{2} + \frac{121}{3} \\ = \frac{201 + 242}{6} \\ = \frac{443}{6} \\ = 73 \frac{5}{6} \: kg[/tex]