Question

Помогите решить пример: 2 3/13•( 5- 1 9/17)=

Answer 1

$2 frac{3}{13} *( 5-1 frac{9}{17} )=7frac{164}{221}$
$1) 5-1 frac{9}{17} = 5 - frac{26}{17} = frac{85-26}{17} = frac{59}{17} =3 frac{8}{17}$
$2) 2frac{3}{13} *3 frac{8}{17} = frac{29}{13} * frac{59}{17} = frac{1711}{221}= 7frac{164}{221}$