simplify. assume no denominator is eual to zero.

-10m-1y0r(numerator)
-14m-7y-3r-4(denominator)

Multipy numerator and denominator by m7y3r4

To simplify the given expression, we need to multiply both the numerator and the denominator by a common factor to eliminate any common factors between them.

In this case, the common factors between the numerator and the denominator are 2 and m. So, we should multiply both the numerator and denominator by (2m):

Numerator: -10m * (2m) - 1y0r = -20m² - 1y0r
Denominator: -14m * (2m) - 7y * (2m) - 3r * (2m) - 4 = -28m² - 14my - 6mr - 4

Therefore, the simplified expression becomes:

(-20m² - 1y0r) / (-28m² - 14my - 6mr - 4)

Please note that without any additional information regarding the values of y and r, we cannot simplify the expression further.