Below is an instruction that describes a task. Write a response that appropriately completes the request in Spanish. Please answer in Spanish.

### Instruction:
 John had $20. He spent 1/5 of his money on snacks and 3/4 of the remaining money on necessities. How much is left of John's money?


### Response:
 John gastó $20 x 1/5 = $<<20*1/5=4>>4 en snacks.
Le quedaron $20 - $4 = $<<20-4=16>>16 de dinero restante.
Gastó $16 x 3/4 = $<<16*3/4=12>>12 en sus necesidades.
Entonces, a John le quedan $16 - $12 = $<<4=4>>4.