Question

РЕШИТЕ!!!!!!!!!!!!!!!!!!!!!!

Answer 1

(-8,5)*20/17+(91/46-106/46)*23/30=-10+(-15)/60=-10,25

Answer 2

Решение:
1)$-2,4 - 6,1 = - (2,4 + 6,1) = -8,5$
2) $1 frac{45}{46} - 2 frac{7}{23} = 1 frac{45}{46} - 2 frac{14}{46} = - (2 frac{14}{46} - 1 frac{45}{46} ) =- (1 frac{60}{46} -1 frac{45}{46} ) = - frac{15}{46}$
3) $- 8,5 * 1 frac{3}{17} = - frac{17*20}{2*17} = - 10$
4) $- frac{15}{46} : 1 frac{7}{23} = - frac{15*23}{46*30} = - frac{1*1}{2*2} = - frac{1}{4}$
5) $- 10 + (- frac{1}{4} ) = - 10 frac{1}{4}$
Ответ: $- 10 frac{1}{4}.$