Question

Решите пожалуйста.
-12/13*(-26/27)=?
-1 3/8*1 7/33=?

Answer 1

 $frac{12*26}{13*27} = frac{4*2}{9} = frac{8}{9}$
- 1 3/8 * 1 7/33  = - 11/8 * 40/33 = -11/33 * 40/8 = - 5/3 = - 1 2/3