[tex]a)4 \div 6 - 3 = \: 0.(6) - 3 = - 2.(3)[/tex]
[tex]b)(5 - 2) \div 2 = 3 \div 2 = 1.5[/tex]
[tex]c)(6 - 3) \div 7 = 3 \div 7 = \frac{3}{7} [/tex]