What is 510 divided by 10 with a one over it

I think you mean 510 /

So 510 divided by one tenth

Dividing a fraction is the same as multiplying the inverse

An inverse of a fraction is 1 divided by the number, or basically "flipped"

ex.

Original fraction     Inverse:

Original:               Inverse:

The inverse of is , or simply just 10

So we need to multiply 510 by the inverse of , or 10

510 * 10 = 5,100

12 servings. 4 times 3= 12