Question

(18 1/4-17 5/6)*8,4+6,5 Решите пожалуйсто

Answer 1

1)18 1/4 - 17 5/6 = 73/4 - 107/6 = (73 × 3 - 107 × 2)/12 = (219 - 214)/12 = 5/12
2) 5/12*8,4=5/12 *8 4/10 = 5/12 * 42/5 =210/60 = 7/2 = 3 1/2 =3,5
3) 3,5+6,5=10
 ответ : 10