Question

74*53+116*92=
34*58+116*83-78*13=

Answer 1

Ответ:

Пошаговое объяснение:

1)  7/4х5/3+11/6х9/2=(7х5)/(4х3)+(11х9)/(6х2)=35/12+99/12=134/12=11 2/12=11 1/6

2) 34*58+116*83-78*13= (3х5)/(4х8)+(11х8)/(6х3)-(7х1)/(8х3)=

15/32+88/18-7/24,= (270+2816)/576-7/24=3086/576-7/24=(3086-(7х24))/576=

(3086-168)/576=2918/576= 5 38/576= 5 19/288