Simplify

5x^7y^6/ 4y^6x^3*7x^3y^4/6x^2y^5

There is no way we can help with that, in the form of a long line of characters, such is the limit of our text driven window.

Simplify

5x^7y^6/ 4y^6x^3
*

7x^3y^4/6x^2y^5

35x^2 / 24y

so for what value is the number underfined?

To simplify the given expression, we can follow a few steps:

Step 1: Combine like terms in the numerator and denominator separately.

In the numerator:
5x^7y^6 / 4y^6x^3 = (5/4) * (x^7/x^3) * (y^6/y^6) = (5/4) * (x^(7-3)) * (y^(6-6)) = (5/4) * (x^4)

In the denominator:
7x^3y^4 / 6x^2y^5 = (7/6) * (x^3/x^2) * (y^4/y^5) = (7/6) * (x^(3-2)) * (y^(4-5)) = (7/6) * (x) * (y^(-1)) = (7/6x) * (1/y)

Step 2: Combine the results from the numerator and denominator.

(5/4) * (x^4) / ((7/6x) * (1/y))

Step 3: Simplify further if possible.

To simplify further, we can rewrite "1/y" as "y^(-1)" and multiply it to the denominator:
(5/4) * (x^4) * (6x/7) * (y^(-1))

Now we can multiply the numerical coefficients together and simplify any like terms in the exponents:

(5 * 6x * x^4) / (4 * 7 * y)

The simplified expression is:
(30x^5) / (28y)