The Prophet (peace be upon him) said: "He who provides for the breaking of the Siyam (fast) earns the same merit as the one who was observing Siyam without diminishing in any way the reward of the latter."
1. Feeding ones who are fasting has a ridiculous multiplier effect in terms of rewards, mA.
May Allah give us the opportunity to provide for ones who are fasting during this blessed month of Ramadan. Ameen!