4) 3 2/5 x 2 1/4

*
1 point
7 2/5
6 2/20
6 1/10
7 13/20

To multiply mixed numbers, we first convert them to improper fractions:

3 2/5 = (3*5 + 2)/5 = 17/5
2 1/4 = (2*4 + 1)/4 = 9/4

Now we multiply the fractions:

(17/5) * (9/4) = (17*9) / (5*4) = 153/20

Finally, we convert the resulting improper fraction back to a mixed number:

153/20 = 7 13/20

Therefore, the answer is 7 13/20.