Question

Выполните деление : 1) -36: 9; 2)-45: (-5); 3)-78,2: (-34); 4)-13: 2; 5)-21: (-14); 6) 6: (-12); 7)-8,4: 0,07; 8) 3/14: (-2/21); 9) -12: (-6/7); 10) -3/4: (-1 5/9); 11) -1 8/27: (1 5/9); 12) -3 3/26: (-2 10/13).

Answer 1

1) - 36 : 9 = - 4

2) - 45 : (- 5) = 9

3) - 78,2 : (- 34) = 2,3

4) - 13 : 2 = - 6,5

5) - 21 : (- 14) = 1,5

6) 6 : (- 12) = - 0,5

7) - 8,4 : 0,07 = - 120

$8)\tt\displaystyle\frac{3}{14}:(-\frac{2}{21})=\frac{3}{14}*(-\frac{21}{2})=-\frac{9}{4}=-1\frac{1}{4}$

$9)12:(-\tt\displaystyle\frac{6}{7})=12*(-\frac{7}{6})=-14$

$10)-\tt\displaystyle\frac{3}{4}:(-1\frac{5}{9})=-\frac{3}{4}:(-\frac{14}{9})=-\frac{3}{4}*(-\frac{9}{14})=\frac{27}{56}$

$11)-1\tt\displaystyle\frac{8}{27}:1\frac{5}{9}=-\frac{35}{27}:\frac{14}{9}=-\frac{35}{27}*\frac{9}{14}=-\frac{5}{6}$

$12)-3\tt\displaystyle\frac{3}{26}:(-2\frac{10}{13})=-\frac{81}{26}:(-\frac{36}{13})=-\frac{81}{26}*(-\frac{13}{36})=\frac{9}{8}=1\frac{1}{8}$