Is it possible to equalize the potentials of electric oven and gas stove?

Hello. On the body of the electric oven Electrolux (about 10 years), the voltage is 90-100 V. Next to it is a built-in gas stove. When you accidentally touch both surfaces with your hands, it is shocking. The apartment of the 70s, grounding, as such, is absent. The gas plug does not have a ground contact. The question is: is it possible to equalize the potentials on both devices and is it fraught with a gas explosion, etc.? I would be grateful for the answer.