Question

помогите пожалуйста​

Answer 1

$(6frac{23}{19} - 2 frac{8}{19}) + (7 frac{19}{19} - 4 frac{12}{19}) = 4 frac{15}{19} + 3 frac{7}{19} = 7 frac{22}{19} = 8 frac{3}{19}$