Question

Efectuati 15 supra 12:(1 supra 3 - 1 supra 2)+1 supra 6​

Answer 1

Răspuns:

$\frac{15}{12} \div ( \frac{1}{3} - \frac{1}{2} ) + \frac{1}{6} = \\ = \frac{15}{12} \div - \frac{ 1}{6} + \frac{1}{6} = \\ = \frac{15}{12} \times - \frac{6}{ 1} + \frac{1}{6} = \\ = - \frac{90}{ 12} + \frac{1}{6} = \\ = - \frac {45}{ 6} + \frac{1}{6} = \\ = - \frac{44}{6} = \\ = \frac{22}{3}$