A:### Quick Answer

**A list of benchmark fractions include 1/4, 1/3, 1/2, 2/3 and 3/4.** Benchmark fractions are common fractions that are used for comparison to other numbers. For example, the benchmark fraction 1/10 is often used because of how it relates to decimals.

Benchmark fractions are useful to know because of how they relate to common percentages and decimals. Every fraction can be converted into a decimal by dividing the denominator, or the bottom number, into the numerator, the top number. The decimal can then be converted into a percentage by multiplying by 100. A list of some benchmark fractions and their equivalents are:

- 1/2 = 50 percent = 0.5
- 1/4 = 25 percent = 0.25
- 2/5 = 40 percent = 0.4
- 3/8 = 37.5 percent = 0.375
- 7/10 = 70 percent = 0.7
- 1/9 = 11.11 percent = 0.111
- 1/8 = 12.5 percent = 0.125
- 4/5 = 80 percent = 0.8

- Q:
## How do you subtract fractions?

A:To subtract fractions, make sure the bottom numbers (denominators) are the same, then subtract the top numbers (numerators) from one another, retaining the denominator and simplifying if required. This process can be done by hand or by using a calculator.

Full Answer >Filed Under: - Q:
## How do you add, subtract, multiply and divide fractions?

A:Add and subtract fractions by finding like denominators and then adding or subtracting the numerators. To multiply fractions, simply multiply the numerators and denominators together. To divide fractions, multiply the first fraction by the inverse of the second fraction. Finish by simplifying your answer.

Full Answer >Filed Under: - Q:
## Who created fractions?

A:

Full Answer >**Fractions were created by the ancient Egyptians in 1800 B.C.**Egyptians created a number system on a base 10 concept, which is similar to the numerical systems used in the United States and around the world for creating fractions. Originally, Egyptians used pictures as well as numerals to display and differentiate numbers.Filed Under: - Q:
## How do you simplify fractions?

A:To simplify a fraction, divide both the top number, the numerator, and the bottom number, the denominator, by the greatest common factor. Simplifying a fraction is reducing it to its lowest form.

Full Answer >Filed Under: