What similarities exist between the tithe (judaism, christianity) and the zakat (i) ?

The similarities exist between the tithes of the three religions namely Judaism, Christians and Zakat (Muslim) are about giving or tithing. Tithes in Christianity is giving of 1/10 of the whole amount of what you've got, example your income or whatever aspects about livelihood. It means supporting to all Christians activities, while the tithe in Judaism is also giving 1/10 of the remaining agricultural produce to the Levites. And the tithes in Zakat is an obligatory or mandatory form of donation that is authorized to Muslims which is also to give 1/10 of one's income or assets. Actually, Zakat is the 3rd of the five Islam's Pillars and has 2 kinds which are Zakat on self and Zakat on wealth.