Can i get with this math problem #15

To solve this, we need to find the least common multiple of both numbers.

18 = 18,36,54,72,90,108...

30 = 30,60,90...

18 x 5 = 90

30 x 3 = 90

That means five 18inch boxes would be the same height as three 30inch boxes.

-136  

Step-by-step explanation:

Here the given problem,

-13 - 123,

By using number line, we will follow the following steps,

Step 1 : Start from -13 in the number line,

Step 2 : Since, -123 is a negative number so, move 123 units left side from -13,

Step 3 : We will get -136, which is the answer.

That is,

-13 - 123 = -136