Răspuns :

Aurelcraciun59id

Răspuns:

Explicație pas cu pas:

=√81/√400+√16/√25

= 9/20+⁴⁾4/5

=9/20+16/20

= 25/20

= se simplifica prin 5

= 5/4

MaraDiaconu20id

[tex] \sqrt{ \frac{81}{400} } = \frac{ \sqrt{81} }{ \sqrt{400} } = \frac{9}{20} [/tex]

[tex] \sqrt{ \frac{16}{25} } = \frac{ \sqrt{16} }{ \sqrt{25} } = \frac{4}{5} [/tex]

[tex] \frac{9}{20} + \frac{4}{5} = [/tex]

[tex] \frac{9}{20} + \frac{16}{20} = \frac{16 + 9}{20} = \frac{25}{20} = \frac{5}{4} [/tex]