Question

efectuati calculele:
a) (-5 supra 12 + 1 supra 6) * 3 1 supra 2

Answer 1

Răspuns:

Explicație pas cu pas:

$( - \frac{5}{12} + \frac{ {}^{2)} 1}{6} ) \times 3 \frac{1}{2} = ( - \frac{5}{12} + \frac{2}{12} ) \times \frac{3 \times 2 + 1}{2} = - \frac{3 {}^{(3} }{12} \times \frac{7}{2} \\ = - \frac{1}{4} \times \frac{7}{2} = \boxed{ - \frac{7}{8} }$