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

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