Respuesta :

Answer:

7/17

Step-by-step explanation: I hope this helps!

Answer:

21/51 simplified to lowest terms is 7/17.

Step-by-step explanation:

Find the GCD of numerator and denominator

Divide both the numerator and denominator by the GCD

21 ÷ 3  = 7

51 ÷ 3 = 17

Reduced fraction = 7/17