Final answer:
The irreducible fraction equal to 216/720 is 3/10.
Step-by-step explanation:
To get the irreducible fraction equal to 216/720, we need to find the greatest common divisor (GCD) of the numerator and denominator. The GCD of 216 and 720 is 72.
Dividing both the numerator and denominator by 72 gives us 3/10 as the irreducible fraction.