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प्रश्न
Which of the following is not true?
पर्याय
Rational numbers are closed under addition.
Rational numbers are closed under subtraction.
Rational numbers are closed under multiplication.
Rational numbers are closed under division.
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उत्तर
Rational numbers are closed under division.
Explanation:
Rational numbers are not closed under division.
As, 1 and 0 are the rational numbers but `1/0` is not defined.
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संबंधित प्रश्न
Express each of the following as a rational number of the form \[\frac{p}{q}:\]
Multiply:
Simplify:
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The reciprocal of a negative rational number is .....
Find a rational number between −3 and 1.
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`(-5)/(-12` is a negative rational number
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Manavi and Kuber each receives an equal allowance. The table shows the fraction of their allowance each deposits into his/her saving account and the fraction each spends at the mall. If allowance of each is Rs. 1260 find the amount left with each.
| Where money goes | Fraction of allowance | |
| Manavi | Kuber | |
| Saving Account | `1/2` | `1/3` |
| Spend at mall | `1/4` | `3/5` |
| Left over | ? | ? |
