Question

Calcule o valor das expressões : ab+c/a para a= -3/2 b=1/4 c= -3/5

Answer 1

(-3/2).(1/4)+(-3/5)/((-3/2)

(-3/8) + (-3/5).(-2/3)
(-3/8) + (+6/15)    - -----------------  6/15 =3/5

-3/8+ 3/5 ----------------------- mmc (5 e 8) = 40

5/5(-3/8) + 8/8.(3/5)

-15/40 +24/40

9/40