To find out how many eggs the Sanchez family has now, we first calculate the total number of eggs in the crates they bought.
Each crate contains 18 eggs, and they bought 3 crates:
\[ 3 \text{ crates} \times 18 \text{ eggs per crate} = 54 \text{ eggs} \]
Next, we add the 9 eggs they already had in the refrigerator:
\[ 54 \text{ eggs} + 9 \text{ eggs} = 63 \text{ eggs} \]
Therefore, the Sanchez family now has a total of 63 eggs.