Mario replaced 72 tires on the small and large trucks in his fleet. He replaced 3 times as many tires on the large trucks as on the small. How many tires did he replaced on the small trucks?

Let x = tires on small trucks. Then 3x = tires on large trucks

3x + x = 72

Solve for x.

24

It comes down to division or fractions

72 ÷ 4 = 18
18+18+18 = 54... 3/4 of total sum (3 time as many on large trucks )
18 tires Mario replaced on small truck
( 18 ) +18 + 18 + 18 = 72
18 × 4 = 72 subtract 3/4 = 54 remaining 18 = 1/4

To find the number of tires Mario replaced on the small trucks, we first need to set up an equation based on the given information.

Let's assume that the number of tires replaced on the small trucks is x.

According to the problem, Mario replaced 3 times as many tires on the large trucks as on the small trucks. So the number of tires replaced on the large trucks would be 3x.

Now, we know that Mario replaced a total of 72 tires on both small and large trucks. Therefore, we can write the equation:

x + 3x = 72

Simplifying the equation, we combine like terms:

4x = 72

To solve for x, we divide both sides of the equation by 4:

x = 72/4
x = 18

Therefore, Mario replaced 18 tires on the small trucks.