Question

Допоможить будьласка​

Answer 1

( 1 )

$(9\frac{8}{15}-7\frac{7}{15})*4,5-2\frac{1}{6}:0,52=5\frac{2}{15}$

1 действие  ⇒

$9\frac{8}{15}-7\frac{7}{15}=2\frac{1}{15}$

2 действие  ⇒

$2\frac{1}{15}*4,5=\frac{31}{15}*\frac{45}{10}=\frac{31}{1}*\frac{3}{10}=\frac{93}{10}=9\frac{3}{10}$

3 действие  ⇒

$2\frac{1}{6}:0,52=\frac{13}{6}:\frac{52}{100}=\frac{13}{6}*\frac{100}{52}=\frac{1}{6}*\frac{100}{4}=\frac{100}{24}=4\frac{4}{24}=4\frac{1}{6}$

4 действие  ⇒

$9\frac{3}{10}-4\frac{1}{6}=\frac{93}{10}-\frac{25}{6}= \frac{558}{60}-\frac{250}{60}=\frac{308}{60}= 5\frac{8}{60}=5\frac{2}{15}$

( 2 )

$\frac{8}{13}*(-0,1625)-(\frac{9}{22}+1\frac{4}{11})*1,32=-23,5$

1 действие  ⇒

$\frac{9}{22}+1\frac{4}{11}=\frac{9}{22}+\frac{15}{11}=\frac{9}{22}+\frac{30}{22}=\frac{39}{22}=1\frac{17}{22}$

2 действие  ⇒

$\frac{8}{13}*(-0,1625)=\frac{8}{13}*(-\frac{1625}{10000})=\frac{1}{1}*(-\frac{125}{1250})= -\frac{125}{1250}=-\frac{1}{10}$

3 действие  ⇒

$1\frac{17}{22}*1,32=\frac{39}{22}* \frac{132}{10}=\frac{39}{1} *\frac{6}{10}=\frac{234}{10}=23\frac{4}{10}=23\frac{2}{5}$

4 действие  ⇒

$-\frac{1}{10}-23\frac{2}{5}=-\frac{1}{10}- \frac{117}{5}=-\frac{1}{10}-\frac{234}{10}=-\frac{235}{10}=-23\frac{5}{10}=-23\frac{1}{2}=-23,5$