Question

Calculați 3 supra 10 - 1 supra 2 : 8 supra 3 ​

Answer 1

$\frac{3}{10} - \frac{1}{2} : \frac{8}{3} = \\ \\ \frac{1}{2} : \frac{8}{3} = \frac{1}{2} \times \frac{3}{8} = \frac{1 \times 3}{2 \times 8} = \frac{3}{16} \\ \\ \frac{3}{10} - \frac{3}{16} = \frac{3 \times 8}{10 \times 8} - \frac{3 \times 5}{16 \times 5} = \frac{24}{80} - \frac{15}{80} = \frac{24 - 15}{80} = \frac{9}{80}$

Answer 2

Răspuns:

Explicație pas cu pas:

3/10 - 1/2 *3/8 = 3/10 - 3/16 = 24/80 - 15/80 = 9/80