Question

6-(1,44+1,31):2,2+(1+3,7)×0,5+0,9

Answer 1

$6-(1,44+1,31):2,2+(1+3,7)*0,5+0,9= \\ \\6-\frac{275}{100}:\frac{22}{10}+\frac{47}{10}*\frac{5}{10}+\frac{9}{10}= \\ \\6-\frac{275}{100}*\frac{100}{220}+\frac{47}{20}+\frac{9}{10}= \\ \\ \frac{120-25+47+18}{20}=\frac{160}{20}=8$

/robèrtinni