Question

Математика даю 40 баллов!
(0,014*1 2/3-0,286:(-0,6)):(-0,025)

Answer 1

$(0.014 times 1 frac{2}{3} - 0.286 div ( - 0.6)) div ( - 0.025) = - 20\ 1) : : : 0.014 times 1 frac{2}{3} = frac{14}{1000} times frac{5}{3} = frac{7 times 5}{500 times 3} = frac{7}{300} \ 2) : : : 0.286 div ( - 0.6) = - frac{286 times 10}{1000 times 6} = - frac{143}{300} \ 3) : : : frac{7}{300} - ( - frac{143}{300} ) = frac{7 + 143}{300} = frac{150}{300} = frac{1}{2} \ 4) : : : frac{1}{2} div ( - 0.025) = - frac{1 times 1000}{2 times 25} = - 20$

Answer 2

(0,014*1 2/3-0,286:(-0,6)):(-0,025)=-20

1) 0,014*(1 2/3)=(7/500)*(5/3)=7/300

2) 0,286:(-0,6)=(143/500)÷(-3/5)=(143/500)*(-5/3)=-143/300

3) (7/300)-(-143/300)=(7/300)+(143/300)=150/300=1/2=0,5

4) 0,5÷(-0,025)=-20