Question

Sendo A = 7/3 , B = 1/4 e C = 2/3 ; determine A + B – C = (Simplifique quando possível)

Answer 1

A=7/3, B=1/4, C=2/3
7/3+1/4-2/3
7/3+1/4=
(7/3•4)+(1/4•3)=
28/12+3/12=31/12.

31/12-2/3=
(31/12•3)-(2/3•12)=
93/36-24/36=69/36:3=23/12