Question

0,125*1/4=1/2-х х-0,12*2/5=16*1/2

Answer 1

$0,125 = frac{125}{1000} = frac{25}{200} = frac{5}{40} = frac{1}{8}$

 

$0,12 = frac{12}{100} = frac{6}{50} = frac{3}{25}$

 

$frac{1}{8} * frac{1}{4} = frac{1}{2} -x$

 

$frac{1}{32} - frac{1}{2} = x$

 

$frac{1}{32} = frac{1}{2} - x$

 

$frac{1}{32} - frac{1}{2} = frac{1-16}{32} = -frac{15}{32}$

 

$x = -frac{15}{32}$