Question

2supra5 minus 4supra3 inmultit cu (minus9supra8)

cum se face?

Answer 1

[tex] \frac{2}{5} - \frac{4}{3} X (- \frac{9}{8} ) [/tex]$\frac{2}{5} - (-\frac{3}{2} )= \frac{4}{10}-(- \frac{15}{10} )= \frac{19}{10}$

Answer 2

2/5-4/3*(-9/8)=2/5+3/2(se simplifica 3 cu 9 si 4 cu 8)=4/10+15/10(se aduce la acelasi numitor)=19/10