Drag the divisor fraction to the dividend bar to see how many parts of the divisor are in the dividend
Use fraction bars and the rules of dividing signed
numbers to divide
15
Dividend
15 3
5 5
o
18
cila
o
Divisor
o
12
O -5

-5

Step-by-step explanation:

I listen to those people in the comments and they were wrong

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this