What type of number is -\dfrac{15}3− 3 15 ​ minus, start fraction, 15, divided by, 3, end fraction?

A negative integer

Step-by-step explanation:

Given the expression;

-15/3

= (-5 * 3)/3

= -5 * 3/3\

= -5 * 1

= -5

Hence the resulting number is a negative integer

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional