x/4-x/40=9/2

To solve the equation x/4 - x/40 = 9/2, we need to find a common denominator for the fractions on the left side. The least common multiple of 4 and 40 is 40, so we will rewrite the equation with this common denominator:

10x/40 - x/40 = 9/2

Now, we can combine the fractions:

(10x - x) / 40 = 9/2 9x / 40 = 9/2

To solve for x, we can multiply both sides of the equation by 40 to get rid of the fraction:

9x = 40 * (9/2) 9x = 180 x = 20

Therefore, the solution of the equation x/4 - x/40 = 9/2 is x = 20.