Question

помогите пожалуйста​

Answer 1

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