Q:
# Who invented the decimal system?

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### Quick Answer

**The decimal system was invented by Hindu mathematicians in India between the first and sixth centuries A.D.** This system is sometimes also called the Hindu-Arabic numeral system because it was first introduced to Europeans by Arabs, who had acquired the system from the Hindus earlier.

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The decimal system has 10 as its base, and is sometimes known as a base-10 system. The system incorporates whole numbers and decimal fractions. Whole numbers appear before the period, and fractions appear as decimal digits after it. The position of every decimal digit is determined by the power to which the denominator, 10, is raised. For example, 6/10 and 6/100 are represented as 0.6 and 0.06 because 10 is raised to the power 1 and 2, respectively. The power corresponds with decimal position.

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Q:
## Why do we use fractions?

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Full Answer >**A fraction is a part of a whole, and fractions are necessary when dealing with portions and amounts that are not whole numbers.**Fractions are a part of mathematics and science, as well as simple household functions such as cooking and making home repairs.Filed Under: -
Q:
## How do you calculate input/output tables?

A:To calculate input/output tables, also known as function tables, first determine the rule. Use the rule to complete the table, and then write down the rule. You need a pencil and paper, and it takes about 10 minutes to complete the exercise.

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Q:
## What are the factors of 25?

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Full Answer >**Calculating the factors of 25 is straightforward as they are 1, 5 and 25.**The first two factors to be ascertained, sometimes the only two factors, are the number itself and 1. Also, any number that can be divided by itself becomes a factor.Filed Under: -
Q:
## What are real roots in math?

A:In algebra, a real root is a solution to a particular equation. The term real root means that this solution is a number that can be whole, positive, negative, rational, or irrational. While numbers like pi and the square root of two are irrational numbers, rational numbers are zero, whole numbers, fractions and decimals.

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