39. A grocer bought 20.5 kg of sugar at \( ₹ 14.60 \) per kg . if the sugar bought was in the packets of 250 g each, then how many packets of sugar did the grocer buy and how much did he pay for each packet?

Combine. Be sure to simplify your answer whenever possible. \( \frac{11}{18}-\frac{1}{18} \) \( \frac{11}{18}-\frac{1}{18}=\square \) (Type a fraction. Simplify your answer.)

\( \frac{8}{5}-\frac{4}{5}=\square \) (Simplify your answer. Type a fraction.)

11. Arnaldo tinha 100 reais e gastou \( \frac{3}{7} \) do que tinha. Com quantos reais ficou Arnaldo? a) 40 b) 50 c) 60 d) 70 e) 80

Perform the indicated operation and simplify the result. \( \frac{4}{15}+\frac{2}{15} \) \( \frac{4}{15}+\frac{2}{15}=\square \) (Type a simplified fraction.)

1. \( \begin{array}{l}54-(46+7) \\ 37-(24-8)\end{array} \)