Question

a×b=3/7
a×c=5/14
Calculati:(b+c)×a

Answer 1

$a \times b = \frac{3}{7} \\ a \times c = \frac{5}{14} \\ (b + c) \times a = .... \\ \\ a \times b + a \times c = \frac{3}{7} + \frac{5}{14} \\ a \times b + a \times c = \frac{6}{14} + \frac{5}{14} \\ a \times b + a \times c = \frac{11}{14} \\ il \: dam \: factor \: comun \: pe \: a \\ a \times (b + c) = \frac{11}{14}$

Sper că te-am ajutat!!