Q:
# Who discovered fractions?

**Fractions first appeared in the works of Egyptian mathematicians in the form of unit fractions, unlike the ratios used today.** They did not enter Europe until the 17th century.

The need for fractions began with observations of nature. People divided days, months and seasons. As societies grew, people needed a way to measure goods and merchandise for trade when there was no money or currency. The Egyptians were the first society to study fractions by using unit fractions.

A unit fraction has a numerator of 1 and a positive integer for the denominator. Instead of numerals, the Egyptians used symbols representing numbers in fractions. European mathematicians believed fractions came from the Greeks until the Rhind Papyrus, which contained the work of Egyptian mathematicians, was discovered. Egyptian fractions were used to write noninteger numbers until the 18th century, when ratios began to be used.

Evidence of other ancient cultures using fractions has also been discovered. In 550 A.D., the Indian mathematician Aryabhata used fractions to study and solve linear equations. He wanted to predict eclipses of the sun and moon.

The 19th century brought the Industrial Revolution, where fractions were necessary to calculate precision instrumentation. The 20th century saw fractions being used within computer algorithms to solve questions. Fractions continue to have important functions in all areas of life.

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Q:
## Where can you find some good lessons on ratios?

A: Khan Academy and Purplemath offer lessons on ratios. Khan Acadaemy offers nine video lessons and two interactive solvable problems based on the ratio lesso... Full Answer >Filed Under: -
Q:
## Who created fractions?

A: 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 syst... 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 numerator... Full Answer >Filed Under: -
Q:
## How do you add mixed numbers?

A: Mixed numbers can be added either by first converting them to improper fractions and then adding, or by adding the fractional part and the whole-number par... Full Answer >Filed Under: