Please help me with this question

Step-by-step explanation:
Earth = 1trip
Mars = ½trip
If,
Mars = 1trip
Earth = ?
If more, less divides,
[tex] \frac{1}{ \frac{1}{2} } \times 1 \\ \\ 2 \times 1 = 2 \\ therefore \: it \: takes \: two \: trips \: for \: earth \: to \: travel \: around \: the \: sun.[/tex]