Question

помогите пожалуйста пожалуйста быстро​

Answer 1

$3\frac7{15}\cdot0,25+\frac56-1\frac25=\frac{52}{15}\cdot\frac14+\frac56-\frac75=\frac{13}{15}+\frac56-\frac75=\frac{26}{30}+\frac{25}{30}-\frac{42}{30}=\frac9{30}=\frac3{10}\\\\5,4:\left(\frac3{20}+0,75\right)=5\frac25:\left(\frac3{20}+\frac34\right)=\frac{27}5:\left(\frac3{20}+\frac{15}{20}\right)=\frac{27}5:\frac{18}{20}=\frac{27}5\cdot\frac{20}{18}=6\\\\\frac{3\frac7{15}\cdot0,25+\frac56-1\frac25}{5,4:\left(\frac3{20}+0,75\right)}=\frac{\frac3{10}}6=\frac3{60}=\frac1{20}$