Question

9 /16 * (1/4+5/12)-8/15:16/45=помогите

Answer 1

$frac{9}{16} times ( frac{1}{4} + frac{5}{12} ) - frac{8}{15} div frac{16}{45}$

решаем по действиям :

$1) frac{1}{4} + frac{5}{12} = frac{3}{12} + frac{5}{12} = frac{8}{12} = frac{2}{3}$

$2) frac{8}{15} div frac{16}{45} = frac{8}{15} times frac{45}{6} = frac{360}{240} = frac{3}{2} = 1 frac{1}{2}$

$3) frac{9}{16} times frac{2}{3} = frac{18}{48} = frac{3}{8}$

$4) frac{3}{8} - 1 frac{1}{2} = frac{3}{8} - frac{3}{2} = frac{3}{8} - frac{12}{8} = - frac{9}{8} = - 1 frac{1}{8}$

Ответ :

$- 1 frac{1}{8}$