Question

(8/11-20/55)*66/20 решение

Answer 1

Правильное решение:
(8/11-20/55)*66/20
4/11*66/20
4/11*66/20 = 6/5 = 1.5
Ответ: $\frac{6}{5}$ 

Answer 2

( 8/11 - 20/55 ) × 66/20 = 4/11 × 66/20 = 6/5 = 1,2