Question

помогите пж (2 1/2-11/14)(1 4/9+2 5/6-2 3/4)

Answer 1

Ответ:

Пошаговое объяснение:

(2 1/2- 11/14) *(1 4/9 +2 5/6 -2 3/4) = (5/2 - 11/14) *( 13/9 + 17/6 - 11/4)=

= (35/14 - 11/14) * ( 52/36 + 102/36 - 99/36)= 24/14 * 55/36= 1320/504 =

=2 39/63

Answer 2

Пошаговое объяснение:

$(2 \frac{1}{2} - \frac{11}{14} ) \times (1 \frac{4}{9} + 2\frac{5}{6} - 2 \frac{3}{4} ) = ( \frac{5}{2} - \frac{11}{14} ) \times ( \frac{13}{9} + \frac{17}{6} - \frac{11}{4} ) = ( \frac{35}{14} - \frac{11}{14} ) \times ( \frac{52}{36} + \frac{102}{36} - \frac{99}{36} ) = \frac{24}{14} \times \frac{55}{36} = \frac{1320}{504} = 2 \frac{39}{63}$