Question

Найдите сумму: 1) -6 + (-5); 2) -0,7 + (-2,8); 3) -0,82 + (-0,18); 4) - 5/7 + (- 9/14); 5) - 1/4 + ( - 1/6); 6) - 3/8 + 0

Answer 1

1) -6 + (-5)=-6-5=-11;/// 2) -0,7 + (-2,8)=-0,7-2,8=-3,5;/// 3) -0,82 + (-0,18)=-1;/// 4) - 5/7 + (- 9/14)=-10/14-9/14=-19/14= -1 5/14;/// 5) - 1/4 + ( - 1/6)=-3/12-2/12=-5/12;/// 6) - 3/8 + 0=-3/8

Answer 2

1)-6+(-5)=-6-5=-11
2)-0,7+(-2,8)=-0,7-2,8=-3,5
3)-0,82+(-0,18)=-0,82-0,18=-1
4)$- frac{5}{7}+(- frac{9}{14})=- frac{5}{7}- frac{9}{14}= frac{-10-9}{14}=- frac{19}{14}=-1 frac{5}{14}$
5)$- frac{1}{4}+(- frac{1}{6} )=- frac{1}{4}-frac{1}{6}= frac{-3-2}{12}=- frac{5}{12}$
6)-3/8+0=-3/8