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What are Rational Numbers? Video Lecture | Mathematics Olympiad Class 7
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FAQs on What are Rational Numbers? Video Lecture - Mathematics Olympiad Class 7
| 1. What are rational numbers? |  |
Ans. Rational numbers are numbers that can be expressed as a fraction or ratio of two integers, where the denominator is not zero. They include both positive and negative numbers, as well as zero.
| 2. How can rational numbers be represented? | |
Ans. Rational numbers can be represented in various ways, such as fractions, decimals, and percentages. For example, the rational number 3/4 can be represented as 0.75 in decimal form and 75% in percentage form.
| 3. Are whole numbers also considered rational numbers? | |
Ans. Yes, whole numbers are considered rational numbers. Whole numbers are integers that are greater than or equal to zero, and since they can be expressed as fractions with a denominator of 1, they fall under the category of rational numbers.
| 4. Can irrational numbers be considered rational? | |
Ans. No, irrational numbers cannot be considered rational. Irrational numbers are numbers that cannot be expressed as fractions, and their decimal representations are non-terminating and non-repeating. Unlike rational numbers, they cannot be written as a ratio of two integers.
| 5. How can rational numbers be used in real-life situations? | |
Ans. Rational numbers have numerous applications in real-life situations. They can be used in everyday calculations, such as measuring ingredients in recipes, calculating distances, or determining proportions. They are also used in various fields like finance, engineering, and science for precise calculations and measurements.
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