Marcel and Gabby split $£54$ in the ratio $2:7$. We need to find how much money Gabby gets.

1. Problem Description

Marcel and Gabby split $£54$ in the ratio $2:7$. We need to find how much money Gabby gets.

2. Solution Steps

The ratio of Marcel's share to Gabby's share is $2:7$.

The total number of parts in the ratio is $2+7 = 9$.

The total amount of money is $£54$.

Each part of the ratio is worth $£54 / 9 = £6$.

Gabby's share is $7$ parts, so Gabby gets $7 \times £6 = £42$.

3. Final Answer

Gabby gets $£42$.