Question

помогите решить 701 номер под четными номерами

Answer 1

2)
38/147*91/152*65/264=1/147*91/4*65/264=1/147*91/4*65/264=
  =5915/155232

4)
(3/4+2/9)*(2 23/56-3 15/56)=(27/36+8/36)*(2 8/56-3)=35/36*(-48/56)=
=35/36*(-6/7)=-5/36*6/1=-5/6*1/1=-5/6

6) 
5,86-3 5/6*15/23+15/28:4 2/7=5,86-23/6*15/23+15/28:30/7=
=5,86-1/6*15/1+15/28*7/30=5,86-15/6+1/28*7/2=5,86-5/2+1/4*1/2=
=5,86-2,5+1/8=5,86-2,5+0,125=3,485

8)
$frac{5 frac{1}{7}* 5frac{1}{4} + 5 frac{5}{8}:3 frac{1}{5} }{10 frac{5}{13}:1 frac{1}{26} }= frac{ frac{36}{7}* frac{21}{4} + frac{45}{8}: frac{16}{5} }{ frac{135}{13}: frac{27}{26} }=frac{ frac{9}{1}* frac{3}{1} + frac{45}{8}* frac{5} {16} }{ frac{135}{13}* frac{26}{27} }= \ =frac{ 27+ frac{225}{128} }{ frac{5}{1}* frac{2}{1} }=frac{ 27+ 1frac{97}{128} }{ 10}=28 frac{97}{128}:10= 3681/128*1/10=3681/1280=\=2 frac{1121}{1280}$