Question

Помогите решить пример по действиям
(7 целых 1/9 - 6 целых 7/12):19+5,5*2/11

Answer 1

$(7 \frac{1}{9} -6 \frac{7}{12}):19+5.5* \frac{2}{11}=1 \frac{1}{36} \\ 1) 7 \frac{1}{9}-6 \frac{7}{12}= \frac{64}{9}- \frac{79}{12}= \frac{64*4-79*3}{36}= \frac{256-237}{36}= \frac{19}{36} \\ 2) \frac{19}{36}:19= \frac{19}{36}* \frac{1}{19}= \frac{1}{36} \\ 3) 5.5* \frac{2}{11}= \frac{11}{2}* \frac{2}{11}=1 \\ 4) \frac{1}{36}+1=1 \frac{1}{36}$