Question

Помогите решить пример

Answer 1

Ответ:

Напишу по действиям

1)   $6,8-5\frac{5}{9} =\frac{6,8}{1}- \frac{50}{9} =\frac{61,2}{9} -\frac{50}{9}= \frac{11,2}{9} =2\frac{2,2}{9}$

2)   $2\frac{13}{30} -2\frac{1}{12}=\frac{73}{30}-\frac{25}{12}=\frac{146}{60} -\frac{125}{60}=\frac{21}{60}$

3)   $2\frac{2,2}{9}:\frac{21}{60} =\frac{11,2}{9} *\frac{60}{21} =\frac{11,2}{3}*\frac{20}{21}=\frac{224}{63} =3\frac{35}{63}$

4)   $3\frac{35}{63}*3,6 =\frac{224}{63} *\frac{3,6}{1} =\frac{806,4}{63} =12,8$