Answer:
Prime factorization: 81 = 3 x 3 x 3 x 3 which can also be written 3⁴
Answer:
2 1/3 has not been thrown away.
Step-by-step explanation: You just basically subtract it but I'm not sure about the denominator, but here is the work.
6 1/2 - 4 2/3 = 2 1/3