Question

Calculați 1 pe 2 + 0,75 - 0,8(3).

Answer 1

Răspuns:

Explicație pas cu pas:

$\frac{1}{2}+0,75-0,8(3)=\frac{1}{2}+\frac{75}{100}-\frac{83-8}{90}=\frac{1}{2}+\frac{3}{4}-\frac{75}{90}=\frac{1}{2}+\frac{3}{4}-\frac{5}{6}=\frac{6}{12}+\frac{9}{12}-\frac{10}{12}=\boxed{\bold{\frac{5}{12}=0,41(6)}}$