Answer:

explanation:
Use the keep change flip method. This consists of literally flipping a fraction to make the denominators alike, allowing for faster solves and multiplication.
is
, so flip 7/3 so it is 3/7, matching up with 4/7.
Next, multiply.
<u>4 x 3</u>
7 x 7
<em>4 x 3</em> is 12. Write 12 as a numerator.
<em>7 x 7</em> is 49. Write 49 as a denominator.
Therefore, the answer is 
Simplifying? We cannot simplify this number due to a lack of factors.