SAN SALVADOR, El Salvador (AP) _ Leftist rebels announced Tuesday they were willing to take a break from the war until Easter if the army agrees to cease its fire as well.

The rebel Farabundo Marti National Liberation Front said in a clandestine radio broadcast monitored here that a temporary cease-fire would allow people to better enjoy Easter. Traditionally, Salvadorans take off from work the week before the holiday and vacation at the beaches.

There was no immediate response from the army. When rebels announced a unilateral three-day cease-fire for the March 10 legislative and municipal elections, Defense Minister Gen. Rene Emilio Ponce called the measure ''propagandistic,'' and scattered fighting continued.

More than 75,000 people have been killed since the guerrillas launched their war for power in October 1979 against a succession of U.S.-supported governments.

The last big clash occurred Monday in the northern province of Chalatenango, where as many as 12 people were reported killed and 58 wounded in firefights lasting more than six hours.