Вычислите (13 2/3 × 2 1/7-12 2/3×2 1/7):1 1/14×3 1/3+1/3 Помогите срочноооо

1)
$13 \frac{2}{3} \times 2 \frac{1}{7} = \frac{41}{3} \times \frac{15}{7} = \frac{41 \times 5}{7} = \\ = \frac{205}{7} = 29 \frac{2}{7}$
2)
$12 \frac{2}{3} \times 2 \frac{1}{7} = \frac{38}{3} \times \frac{15}{7} = \frac{38 \times 5}{7} = \\ = \frac{190}{7} = 27 \frac{1}{7}$
3)
$29 \frac{2}{7} - 27 \frac{1}{7} = 2 \frac{1}{7}$
4)
$2 \frac{1}{7} \div 1 \frac{1}{14} = \frac{15}{7} \times \frac{14}{15} = 2$
5)
$2 \times 3 \frac{1}{3} = 2 \times \frac{10}{3} = \frac{20}{3} = 6 \frac{2}{3}$
6)
$6 \frac{2}{3} + \frac{1}{3} = 6 \frac{3}{3} = 7$
Ответ:7