Question

16 целых :1 целая 2/

Answer 1

$16\div1\dfrac{2}{5}=16\div\dfrac{7}{5}=16\cdot\dfrac{5}{7}=\dfrac{80}{7}=11\dfrac{3}{7}$

Answer 2

$16 \div 1 \frac{2}{5} = 16 \div \frac{5 \times 1 + 2}{5} = 16 \div \frac{7}{5} = 16 \times \frac{5}{7} = \frac{16 \times 5}{7} = \frac{80}{7} = 11 \frac{3}{7}.$