Question

помогите пожалуйста!!!!!!!!!

Answer 1

5/6+5/18=15/18+5/18=20/18=10/9=1 1/9
3 7/9-2 13/15=34/9-43/15=170/45-129/45=41/45
10/9-41/45=50/45-41/45=9/45=1/5
ответ 1/5

Answer 2

$\frac{15}{18} + \frac{5}{18} - \frac{34}{9} + \frac{43}{15} = \frac{20}{18} - \frac{68}{18} + \frac{43}{15} = - \frac{ 48}{18} + \frac{43}{15} = \frac{ - 48 \times 10 + 43 \times 12}{180} = \frac{ - 480 + 516}{180} = \frac{36}{180} = \frac{1}{5} = 0.2$