Пошаговое объяснение:
7/2-(1 1/2)^2×2 5/6-(-1 3/7)-4/3=9/4
1) (1 1/2)^2=(3/2)^2=9/4
2) 9/4×2 5/6=9/4×17/6=51/8
3) 7/2-51/8=(28-51)/8= - 23/8
4) - 23/8-(-1 3/7)= - 23/8+10/7=
=(-161+80)/56= - 81/56
5) - 81/56-4/3=(-243-224)/168=
= - 467/168= - 2 131/168
-2 131/168=9/4 не верно
Пошаговое объяснение:
7/2-(1 1/2)^2×2 5/6-(-1 3/7)-4/3=9/4
1) (1 1/2)^2=(3/2)^2=9/4
2) 9/4×2 5/6=9/4×17/6=51/8
3) 7/2-51/8=(28-51)/8= - 23/8
4) - 23/8-(-1 3/7)= - 23/8+10/7=
=(-161+80)/56= - 81/56
5) - 81/56-4/3=(-243-224)/168=
= - 467/168= - 2 131/168
-2 131/168=9/4 не верно