5 multiplied by 15 is 75.
8
15
It is: -5*3 = -15.
3 * 5 = 15
21
20
1/3 x 15 = 5
They are: 1*3*5 = 15
15/24 or 5/8
75 can be multiplied by 1 and 75, 3 and 25, or 5 and 15 to equal 75.
The sum means the result of adding the numbers. Therefore the sum of 20 and 15 is 35. 5 times 35 is 175 - therefore 5 multiplied by the sum of 20 and 15 is 175.