CLEITONMILHO90GO CLEITONMILHO90GO ENEM Respondido a)2/3 + 5/8=b)7/4 + 1/8=c) 18/5 + 1/2=e)2/5 + 3/5 - 1/2=f) 7/8 - 1/2 + 2/3=g)5/6 - 3/4 + 11/12=