Out of 57/7 x 1/2 what two variables should be crossed canceled

Answer:
54 and 2
Explanation
Given the expression;
[tex]\frac{54}{7}\times\frac{1}{2}[/tex]To know which will cross cancel, we can rearrange to have;
[tex]\begin{gathered} \frac{54}{2}\times\frac{1}{7} \\ \text{ = }\frac{27}{1}\times\frac{1}{7} \end{gathered}[/tex]From the simplification, we can see that 2 and 54 cross cancel from the expression. Hence the required answer is 54 and 2