Answer:
[tex]{ \tt{first \: image}} \\ [/tex]
[tex] = \frac{18 \div (2 \times 3)}{3(3)} \\ \\ = \frac{18 \div 6}{9} \\ \\ = \frac{3}{9} \\ \\ = \frac{1}{3} [/tex]
[tex]{ \tt{second \: image}}[/tex]
[tex]5 + 10 \div 5 [/tex]
introduce a bracket:
[tex] = 5 +( 10\div 5) \\ = 5 + 2 \\ = 7[/tex]
