Question 401460
I assume the problem is:
{{{8.2^(7/4)/8.2^(2/7)}}}
The rule for exponents when dividing is to subtract the exponents. Using this rule we get: 
{{{8.2^((7/4)-(2/7))}}}
Since the exponents are fractions, they need to have common denominators before we subtract them:
{{{8.2^((49/28)-(8/28))}}}
which simplifies to:
{{{8.2^(41/28)}}}