21 US tablespoons in US customary cups

Conversion formula
How to convert 21 US tablespoons to US customary cups?

We know (by definition) that: $1\mathrm{ustablespoon}\approx 0.0625\mathrm{uscup}$

We can set up a proportion to solve for the number of US customary cups.

Now, we cross multiply to solve for our unknown $x$:

Conclusion: 21 ⁢ ustablespoon ≈ 1.3125 ⁢ uscup

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary cup is equal to 0.761904761904762 times 21 US tablespoons.

It can also be expressed as: 21 US tablespoons is equal to $\frac{1}{\mathrm{0.761904761904762}}$ US customary cups.

Approximation

An approximate numerical result would be: twenty-one US tablespoons is about one point three one US customary cups, or alternatively, a US customary cup is about zero point seven six times twenty-one US tablespoons.