2/7 - 3(2 1/5 + 3 1/15 - 4 1/6) + 2 1/3 + 44/70 = 2/7 - 3(11/5 + 46/15 - 25/6) + 7/3 + 22/35= 2/7 - 3(33/15 + 46/15 - 75/15) + 7/3 + 22/35= 2/7 - 3(4/15) + 7/3 + 22/35= 2/7 - 12/15 + 7/3 + 22/35= 2/7 - 4/5 + 7/3 + 22/35= 10/35 - 28/35 + 105/35 + 22/35= 109/35
Итак, значение выражения равно 109/35.
2/7 - 3(2 1/5 + 3 1/15 - 4 1/6) + 2 1/3 + 44/70 = 2/7 - 3(11/5 + 46/15 - 25/6) + 7/3 + 22/35
= 2/7 - 3(33/15 + 46/15 - 75/15) + 7/3 + 22/35
= 2/7 - 3(4/15) + 7/3 + 22/35
= 2/7 - 12/15 + 7/3 + 22/35
= 2/7 - 4/5 + 7/3 + 22/35
= 10/35 - 28/35 + 105/35 + 22/35
= 109/35
Итак, значение выражения равно 109/35.