Question

calculati:(3supea4:3supea4- 1supra2)-4supra9​

Answer 1

$( \frac{3}{4} \times \frac{4}{3} - \frac{1}{2} ) - \frac{4}{9}$

$= (1 - \frac{1}{2}) - \frac{4}{9}$

$= \frac{1}{2} - \frac{4}{9}$

$= \frac{9-8}{18}$

(se aduce la același numitor)

= 1/18