Пж помогите:
2 5/6*4/15+2 1/6*4/15
(6 класс)

2_5/6 * 4/15 + 2_1/6 * 4/15 = 4/15 (2_5/6 + 2_1/6) = 4/15 * 3_6/6 = 4/15 * 4 = 4/15 * 4/1 = 16/15 = 1_1/15