Question

qual é a raiz quadrada exata de 1 9/16 

Answer 1

1 9/16 = 1 + 9/16 = (16 + 9)/16 = 25/16 ⇒ √(25/16) = 5/4

Answer 2

$\sqrt{1 \frac{9}{16}} = \sqrt{\frac{16+9}{16}} = \sqrt{\frac{25}{16}} = \frac{ \sqrt{25} }{ \sqrt{16}} = \frac{5}{4}$