Question

Ajutati-ma varog frumos.Calculati, utilizind metoda factorului comun:

-2$\frac{3}{7}$×2$\frac{4}{5}$+(-2$\frac{3}{7}$)×4$\frac{1}{5}$

Answer 1

= - 17/7 x 14/5 - 17/7 x 21/5
= 17/7 ( -14/5 - 21/5 )
= 17/7 x ( -35/5 )
= -17