Question

Помогите пожалуйста!!прошу!

Answer 1

1)
$3,6* frac{2}{9}= 3frac{6}{10}* frac{2}{9}=3 frac{3*2}{5*2}* frac{2}{9}= 3frac{3}{5}* frac{2}{9}= frac{3+3*5}{5}* frac{2}{9}= frac{18}{5}* frac{2}{9}= frac{18*2}{5*9}=$$frac{36}{45}= frac{4*9}{5*9}= frac{4}{5}=0,8$

2)
$7 frac{1}{5}-3,059= 7frac{1}{5}- 3frac{59}{1000}= frac{7*5+1}{5}- frac{3*1000+59}{1000}= frac{36}{5}- frac{3059}{1000}=$$frac{36*1000}{5*1000}- frac{3059*5}{1000*5}= frac{36000}{5000}- frac{15295}{5000}= frac{36000-15295}{5000}= frac{20705}{5000}= frac{4141*5}{1000*5}= frac{4141}{1000}$$=frac{141+4*1000}{1000}=4 frac{141}{1000}=4,141$

3)
$frac{1}{8}:12,5= frac{1}{8}: 12frac{5}{10}= frac{1}{8}: frac{12*10+5}{10}= frac{1}{8}: frac{125}{10}= frac{1}{8}* frac{10}{125}= frac{1*10}{8*125}= frac{10}{1000} =$$frac{1*10}{100*10}= frac{1}{100}=0,01$

4)
$2 frac{3}{11}*0,22= 2frac{3}{11}* frac{22}{100}= frac{2*11+3}{11}* frac{22}{100}= frac{25}{11}* frac{22}{100}= frac{25*22}{11*100}= frac{550}{1100}=$$frac{1*550}{2*550}= frac{1}{2}=0,5$

Answer 2

реши нормально!!

Answer 3

да ун