Answer: b is 5/4
Step-by-step explanation:
<h2>Correct question;</h2>
<h2>

</h2><h2>Required solution;</h2>
<h3>↠ Multiply the terms with the same base by adding their exponents</h3>
<h2>

</h2><h3>↠ Add the numbers</h3>
<h2>

</h2>
After expanding the answer will be 81

Hope it helps...
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3/5 x 2 = 6/10
6/10>4/10 sorry if that’s not right you didn’t really show us the answer choices