Question

-3supra20-(-3supra10)​

Answer 1

Explicație pas cu pas:

$- \frac{3}{20} - ( - \frac{3}{10}) = - \frac{3}{20} + \frac{3}{10} = - \frac{3}{20} + \frac{6}{20} = \frac{6 - 3}{20} = \bf \frac{3}{20}$