Respuesta :

Answer:

Should be (-21/4) (2/3) = -42/12 = -21/6

So answer is  

Esmerelda did not use the reciprocal of the divisor.

Step-by-step explanation:

Answer: Esmeralda added the numerators.

Esmeralda added the denominators.

Esmeralda did not use the reciprocal of the divisor.