Question

2- Quanto vale a – b, se a = 2/3 e b = –3/5? * 1 ponto a) 15/19 b) 19/15 c) 1/15 d) nenhuma das alternativas​

Answer 1

$\left(\frac{2}{3}\right)-\left(\frac{3}{5}\right)\\\\=\frac{2}{3}-\frac{3}{5}\\\\=\frac{10}{15}-\frac{9}{15}\\\\=\frac{10-9}{15}\\\\=\frac{1}{15}\\\\LETRA >C$

LETRA C