Помогите 8целых 9\20*2\13

Question

Помогите 8целых 9\20*2\13

Answer 1

8 9/20 * 2/13 = 169/20 * 2/13 = (169*2)/(20*13) = 338/260 = 13/10 = 1 3/10 = 1,3