Question

помогите пожалуйста​

Answer 1

$(1 - \frac{5}{7}) \div 7 = \frac{2}{49} \\ 1) \frac{1}{1} - \frac{5}{7} = \frac{7 - 5}{7} = \frac{2}{7} \\ 2) \frac{2}{7} \times \frac{1}{7} = \frac{2}{49}$