Răspuns :
[tex] \frac{12}{100} \times 5 \sqrt{123} = \frac{3}{25} \times 5 \sqrt{123} [/tex]
[tex] = \frac{15 \sqrt{123} }{25} [/tex]
[tex] = \frac{3 \sqrt{123} }{5} [/tex]
[tex] = \frac{15 \sqrt{123} }{25} [/tex]
[tex] = \frac{3 \sqrt{123} }{5} [/tex]