Question

номер 493 помогите плз

Answer 1

1) $5,6-(7,6-(-4,8))= 5,6-7,6+(-4,8)=-2-4,8=-6,8$
2) $52,3-(-18,9-24,5)=52,3+18,9+24,5=71,2+24,5=95,7.$
3) $- frac{5}{6} -(- frac{7}{9} -(- frac{5}{8} ))=- frac{5}{6}+frac{7}{9}-frac{5}{8}= - frac{1}{18} - frac{5}{8}=- frac{49}{72} .$
4) $-7 frac{3}{16}-(2 frac{1}{8} -(- 7frac{7}{12} ))=-7 frac{3}{16}-2 frac{1}{8}-7frac{7}{12} =-9 frac{5}{16} -7frac{7}{12} =-16 frac{43}{48} .$