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प्रश्न
Multiply:
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उत्तर
\[\frac{- 11}{13} \times \frac{- 21}{7} = \frac{( - 11) \times ( - 21)}{13 \times 7} = \frac{231}{91} = \frac{33}{13}\]
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संबंधित प्रश्न
Add the following rational numbers.
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What number should be subtracted from \[\frac{3}{7}\] to get\[\frac{5}{4}?\]
Simplify:
Simplify each of the following and express the result as a rational number in standard form:
For each set of rational number, given below, verify the associative property of addition of rational number:
(iv) `-1, 5/6 and (-2)/3`
Insert five rational number between:
`(2)/(5) and (2)/(3)`
A number of the form `p/q` is said to be a rational number if ______.
The table shows the portion of some common materials that are recycled.
| Material | Recycled |
| Paper | `5/11` |
| Aluminium cans | `5/8` |
| Glass | `2/5` |
| Scrap | `3/4` |
Is the quantity of aluminium cans recycled more (or less) than half of the quantity of aluminium cans?
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 | ? | ? |
