1. **State the problem:** Mr. Sanchez buys $4\frac{3}{4}$ kg of fish to make Spanish sardines. Each can contains $\frac{1}{12}$ kg of fish. Each can is sold for 25 pesos. We need to find how much he will earn after selling all the cans. 2. **Convert mixed number to improper fraction:** $$4\frac{3}{4} = \frac{4 \times 4 + 3}{4} = \frac{19}{4}$$ kg 3. **Find the number of cans:** Number of cans $= \frac{\text{total fish weight}}{\text{fish per can}} = \frac{\frac{19}{4}}{\frac{1}{12}} = \frac{19}{4} \times 12 = 19 \times 3 = 57$ cans 4. **Calculate total earnings:** Total earnings $= \text{number of cans} \times \text{price per can} = 57 \times 25 = 1425$ pesos **Final answer:** Mr. Sanchez will earn 1425 pesos after selling all the cans of sardines.