4/7 x 5/3 x 3/4

To multiply these fractions, you can simply multiply the numerators together and then multiply the denominators together.

(4 x 5 x 3) / (7 x 3 x 4)
= 60 / 84

Now, simplify the fraction by dividing both the numerator and denominator by their greatest common factor, which is 12.

60 ÷ 12 = 5
84 ÷ 12 = 7

Therefore, the simplified answer is 5/7.