This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
( – 28) ÷ ( – 28) = 1
Because if we divide a negative integer with another negative integer than the divisor with negative integer should be multiplied with a positive integer.  
-28/-28 = 1 as any number dividing with itself results 1.
3 5 3