Question

punctul 1 2 supra 3 minus ori 3 supra 5 ori 1 supra 2 egal​

Answer 1

Explicație pas cu pas:

$\frac{2}{3} - \frac{3}{5} \times \frac{1}{2} = \frac{^{10)} 2}{3} - \frac{^{3)} 3}{10} = \frac{20 - 9}{30} = \frac{11}{30}$

sau

$\frac{ \not2}{ \not3} \times \frac{ \not3}{5} \times \frac{1}{ \not2} = \frac{1}{5}$

sau

$\frac{2}{3} \times \Big ( - \frac{3}{5} \times \frac{1}{2} \Big) = - \frac{ \not2}{ \not3} \times \frac{ \not3}{5} \times \frac{1}{ \not2} = - \frac{1}{5}$