Question

5/12-2/9
9/14+1/6.
9/14-1/6.
9/14-1/6.
1/4+1/6.
1/4-1/6
Дроби)))срочно !

Answer 1

Пошаговое объяснение:

$\frac{5}{12} - \frac{2}{9} = \frac{15 - 8}{36} = \frac{7}{36}$

$\frac{9}{14} + \frac{1}{6} = \frac{27 + 7}{42} = \frac{34}{42} = \frac{17}{21}$

$\frac{9}{14} - \frac{1}{6} = \frac{27 - 7}{42} = \frac{20}{42} = \frac{10}{21}$

$\frac{1}{4} + \frac{1}{6} = \frac{3 + 2}{12} = \frac{5}{12}$

$\frac{1}{4} - \frac{1}{6} = \frac{3 - 2}{12} = \frac{1}{12}$

Answer 2

Ответ:

1) 5/12-2/9 = 5/12(3)-2/9(4) = 15/36-8/36 = 7/36

2) 9/14+1/6 = 9/14(3)+1/6(7) = 27/42+7/42 = 34/42 = 17/21

3) 9/14-1/6 = 9/14(3)+1/6(7) = 27/42+7/42 = 20/42 = 10/21

4) точно такая же

5) 1/4+1/6 = 1/4(3)+1/6(2) = 3/12+2/12 = 5/12

6) 1/4-1/6 = 1/4(3)-1/6(2) = 3/12-2/12 = 1/12