8 2/5
Пошаговое объяснение:
6 3/4 = 27/4
1 11/45 = 56/45
27/4 × 56/45 = (27×56)/(4×45) = (3×9×14×4)/(4×5×9) = (3×14)/5 = 42/5 = 8 2/5
