Question

1цел.1/5:10,5
Даю 20 балів

Answer 1

$1 \frac{1}{5} \div 10 \frac{5}{10} = \frac{6}{5} \times \frac{105}{10} = \frac{6 \times 21}{10} = \frac{126}{10} = 12.6$