**Adding two 1/3 cups results in 2/3 cups. 1/3 of a cup is equal to.33 cups, **

so. plus 33 cups 33 cups is equal to 0.66 cups. The standard American cup holds 8 fluid ounces. 1/3 or.33 of 8 ounces is 2.64 ounces, so 2/3 U.S. fluid cups or 1/3 U.S. cups plus 1/3 U.S. cups equals 5.28 U.S. fluid ounces. The British imperial cup contains 10 imperial ounces. Therefore, 1/3 or.33 of 10 ounces equals 3.3 ounces. Therefore, 1/3 imperial cup plus 1/3 imperial cup equals 6.6 ounces.

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## What Are Fractions?

Fractions are defined as a portion of a whole written with a numerator and a denominator. In fractions, the numerator and denominator are separated by a line known as a vinculum.

Typically, the numerator of a fraction is smaller than the denominator. However, there are fractions whose numerators are greater than their denominators. Such fractions are known as “incorrect fractions.” Incorrect fractions can be converted to mixed fractions, which consist of a whole number accompanied by a fraction, as in 1 1/2.

## Addition of Fractions

Adding fractions is straightforward. When adding fractions with identical denominators, such as 1/3 + 1/3, add the numerators and keep the denominator. Thus, 1/3 plus 1/3 equals 2/3. In fractions that do not have an identical denominator, such as 1/2 + 1/3, multiply the numerators with the denominators of the other fraction, and then add the resulting numerator.

Since dividing 12 by 2 yields 2 and dividing 13 by 3 yields 3, adding 2 and 3 yields 5, which becomes your new numerator. The result of multiplying the denominators of the two fractions will be the new denominator. Therefore, 1/2 plus 1/3 equals 5/6.

## Conversion of Fractions to Decimals

Because fractions represent division, they resemble division formulas. In other words, 1/3 equals 13, which equals 0.33. Therefore, 1/3 cup is equivalent to 0.33 cup and 0.33 cup plus. 33 cups is equal to 0.66 cups.

## Cups in the U.S. Customary and British Imperial Systems

Both the American customary system and the British imperial system are derived from the old English system. Volume units, such as fluid ounces, cups, pints, quarts, and gallons, are measured differently between the U.S. customary and imperial systems.

Using the metric system for volume as a standard, a U.S. fluid ounce is equivalent to 29.573 millilitres (mL). Since an American fluid cup contains 8 fluid ounces, one American fluid cup contains 236.48 mL 1/3 or 78.04 mL. This makes 1/3 of a cup equal to 156.07 dollars.

The imperial fluid ounce contains 28.413 millilitres. Given that 1 imperial cup contains 10 imperial fluid ounces, 1 imperial cup is equivalent to 284.13 millilitres. Using the same calculations as above, 1/3 of an imperial cup equals 93.76 mL, and 2/3 of an imperial cup equals 187.52 mL.

## The Cup of the Metric System

Infrequently utilised, the metric system also has its own version of the cup. One cup in the metric system contains 250 millilitres. One-third of a metric cup is 82.5 millilitres. Therefore, 1/3 metric system cup plus 1/3 metric system cup equals 2/3 metric system cups, which is equal to 165 mL.