Question

1 1/4+5/17*2 14/15-2 1/8:51/56
Помогите пожалуйста​

Answer 1

Ответ:

$-\frac{15}{68}$

Пошаговое объяснение:

1$\frac{1}{4}$ + $\frac{5}{17}$×2$\frac{14}{15}$ - 2$\frac{1}{8}$÷$\frac{51}{56}$ = $\frac{5}{4}$ + $\frac{5}{17}$×$\frac{44}{15}$ - $\frac{17}{8}$÷$\frac{51}{56}$ = $\frac{5}{4}$ + $\frac{5*44}{17*15}$ - $\frac{17}{8}$×$\frac{56}{51}$ = $\frac{5}{4}$ + $\frac{1*44}{17*3}$ - $\frac{17*56}{8*51}$ = $\frac{5}{4}$ + $\frac{44}{51}$ - $\frac{1*7}{1*3}$ = $\frac{5}{4}$ + $\frac{44}{51}$ - $\frac{7}{3}$ = $\frac{5*51}{4*51}$ + $\frac{44*4}{51*4}$ - $\frac{7*68}{3*68}$ = $\frac{255}{204}$ + $\frac{176}{204}$ - $\frac{476}{204}$ = $\frac{255+176-476}{204}$ = $\frac{-45}{204}$ = $-\frac{45}{204}$ = $-\frac{15}{68}$