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प्रश्न
Find (x + y) ÷ (x − y), if
\[x = \frac{2}{5}, y = \frac{1}{2}\]
बेरीज
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उत्तर
\[x = \frac{5}{4}, y = \frac{- 1}{3}\]
so`(x+y)÷ (x-y)=(2/5+1/2)÷(2/5-1/2)`
`=9/10xx10/-1=-9`
so`(x+y)÷(x-y)=-9`
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संबंधित प्रश्न
Add the following rational numbers.
\[\frac{- 8}{11} and \frac{- 4}{11}\]
Simplify:
\[1 + \frac{- 4}{5}\]
Express each of the following as a rational number of the form \[\frac{p}{q}:\]
\[\frac{- 8}{3} + \frac{- 1}{4} + \frac{- 11}{6} + \frac{3}{8} - 3\]
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\[\left( \frac{25}{8} \times \frac{2}{5} \right) - \left( \frac{3}{5} \times \frac{- 10}{9} \right)\]
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\[\left( \frac{8}{5} \times \frac{- 3}{2} \right) + \left( \frac{- 3}{10} \times \frac{11}{16} \right)\]
Divide:
\[\frac{- 3}{13}\ \text{by} \frac{- 4}{65}\]
Find the value and express as a rational number in standard form:
\[\frac{- 40}{99} \div ( - 20)\]
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Insert a rational number between:
8 and 8.04
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 | ? | ? |
