Question

5 целых 2/5 умножить на 1 целую 4/21

Answer 1

5_2/5 * 1_4/21 = 27/5 * 25/21 = $frac{27*25}{5*21} = frac{9*5}{1*7} = frac{45}{7} =6 frac{3}{7}$