Question

calcule el valor de las siguientes expresiones algebraicas para: A. 1/2 B. 2/3 C. 1/5
a+bc
5b-2c
a(2b-c)

Answer 1

a+bc
1/2+ 2/3*1/5 = 1/2+2/15 = 19/30
5b-2c
5(2/3)*2(1/5) = 10/3-2/5 = 46/15
a(2b-c) 
1/2(2(2/3)-1/5) = 1/2(4/3-1/5) = 1/2*17/15 = 17/30