Question

no valor da expressão numérica ½ +5/2 x 2/5 é:
a) 6/5​

Answer 1

$\bf \frac{1}{2} + \frac{5}{2} \times \frac{2}{5} \\ \\\bf \frac{1}{2} + 5 \times \frac{1}{5} \\ \\\bf \frac{1}{2} + 1 \\ \\\bf \red{ \frac{3}{2}}$