Question

-0,8(3)+1 intreg si3/4-0,3(8)+0,375

URGENT DAU COROANA​

Answer 1

Salut,

$- 0.8(3) + 1 \frac{3}{4} - 0.3(8) + 0.375 = \\ \\ - 0.8(3) = - \frac{ ^{5)} 75}{90} = - \frac{ ^{3)} 15}{18} = - \frac{5}{6} \\ \\ 1 \frac{3}{4} = \frac{7}{4} \\ \\ 0.3(8) = \frac{ ^{5)} 35}{90} = \frac{7}{18} \\ \\ 0.375 = \frac{^{5)} 375}{1000} = \frac{ ^{5)} 75}{200} = \frac{ ^{5)} 15}{40} = \frac{ 3}{8} \\ \\ - \frac{5}{6} + \frac{7}{4} - \frac{7}{18} + \frac{3}{8} = \\ \\ \frac{11}{12} - \frac{7}{18} + \frac{3}{8} = \\ \\ \frac{19}{36} + \frac{3}{8} = \\ \\ \frac{65}{72}$

Răspuns → $\frac{65}{72}$

Mult Succes !
By PennyLearn !