Question

Достаточно ответа, но лучше решение

Answer 1

1 1/2× 2 10/13 + 2 3/4 × 2 10/13 - 2 10/13× 3 1/6= 3/2 × 36/13 + 11/4 × 36/13 - 36/13 × 19/6 = 3 × 18/13 + 11 × 9/13 - 6/13 × 19 = 54/13 + 99/13 - 114/13 = 3.