Resposta :
"A") 3/5 + 2/6 - 3/12 - 1/2 + 4/6
='3/5 + 6/6 - 4/12(:4)/(:4)'
= ''3/5+1-1/3
mmc (3,5)="15"
'=(3.3+15-5)/15'
'=(9+10)/15'
"=19/15"
"A") 3/5 + 2/6 - 3/12 - 1/2 + 4/6
='3/5 + 6/6 - 4/12(:4)/(:4)'
= ''3/5+1-1/3
mmc (3,5)="15"
'=(3.3+15-5)/15'
'=(9+10)/15'
"=19/15"