Question

Ответье пжжжжжж срочно дам 30балла!!!!

Answer 1

$-3,005+4\frac{5}{8} = -\frac{601}{200} +\frac{37}{8} =\frac{ -601+925}{200}=\frac{324}{200} =\frac{81}{50} \\-3,005-4\frac{5}{8} =-\frac{601}{200} -\frac{37}{8}=-\frac{ 601+925}{200}=-\frac{1526}{200} =-\frac{763}{100}=-7,63\\-3,005*4\frac{5}{8}=-\frac{601}{200} *\frac{37}{8}=-\frac{ 601*37}{200*8}=-\frac{22237}{1600} =-13,898125\\-3,005/4\frac{5}{8}=-\frac{601}{200} /\frac{37}{8}=-\frac{601}{200} *\frac{8}{37}=-\frac{ 601*8}{200*37}=-\frac{ 601*1}{25*37}=-\frac{601}{925}$