Resposta :
40:{20.[20-2.(5+2)]}
40:{20.[20-2.7]}
40:{20.[20-14]}
40:{20.6}
40:120
1/3
Explicação passo-a-passo:
40:{20•[20•[20-2.(5+2)}=
40:{20•[20-2.7}=
40:{20.[20-14}=
40:{20.6)
40:120= 1/3
40:{20.[20-2.(5+2)]}
40:{20.[20-2.7]}
40:{20.[20-14]}
40:{20.6}
40:120
1/3
Explicação passo-a-passo:
40:{20•[20•[20-2.(5+2)}=
40:{20•[20-2.7}=
40:{20.[20-14}=
40:{20.6)
40:120= 1/3