[tex]3 \frac{1}{7} \div \frac{22}{21} = \\ \\ = \frac{22}{7} \div \frac{22}{21} = \\ \\ = \frac{22}{7} \times \frac{21}{22} = \\ \\ = \frac{21}{7} = \\ \\ = 3[/tex]
vezi poza ....acolo simplificam prin taiere
…ᘛ⁐̤ᕐᐷ…ᘛ⁐̤ᕐᐷฅ^•ﻌ•^ฅ
