Tolong Jawab pertanyaan tersebut

[tex]12. \: \: 3 \frac{1}{5} + 0.6 = \frac{16}{5} + \frac{6}{10} = \frac{32}{10} + \frac{6}{10} = \frac{38}{10} \div \frac{2}{2} = \frac{19}{5} = 3 \frac{4}{5} [/tex] (C)
[tex]13. \: \: 0.45 \times \frac{2}{3} \div 50\% = \frac{45}{100} \times \frac{2}{3} \div \frac{50}{100} = \frac{45}{100} \times \frac{2}{3} \div \frac{50}{100} = \frac{90}{300} \times \frac{100}{50} \frac{9}{15} = \frac{3}{5} [/tex] (A)
Semoga Membantu yaa^^

12) 3 1/5 + 0,6
= 16/5 + 6/10
= 32/10 + 6/10
= 38/10 = 19/5 = 3 4/5 (C)

13) 0,45 × 2/3 : 50%
= 45/100 × 2/3 : 50/100
= 15/50 × 100/50
= 6/10 = 3/5 (A)

Semoga membantu