660 US customary teaspoons in US tablespoons
Result
The conversion result is: 660 US customary teaspoons is equivalent to 220 US tablespoons.[1]
Conversion formula
How to convert 660 US customary teaspoons to US tablespoons?
We know (by definition) that: 1 usteaspoon ≈ 0.333333333333333 ustablespoon.
We can set up a proportion to solve for the number of US tablespoons.
1 usteaspoon / 660 usteaspoon ≈ 0.333333333333333 ustablespoon / x ustablespoon
Now, we cross multiply to solve for our unknown x:
x ustablespoon ≈ (660 usteaspoon / 1 usteaspoon) * 0.333333333333333 ustablespoon → x ustablespoon ≈ 219.99999999999977 ustablespoon
Conclusion:
660 usteaspoon ≈ 219.99999999999977 ustablespoon

Conversion in the opposite direction
The inverse of the conversion factor is that 1 US tablespoon is equal to 0.00454545454545455 times 660 US customary teaspoons.
It can also be expressed as: 660 US customary teaspoons is equal to 1 / 0.00454545454545455 US tablespoons.
Approximation
An approximate numerical result would be: six hundred and sixty US customary teaspoons is about two hundred and twenty US tablespoons, or alternatively, a US tablespoon is about zero times six hundred and sixty US customary teaspoons.
Footnotes
[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.