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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:
\[\frac{5}{36} and \frac{- 7}{12}\]
Simplify:
\[\frac{- 8}{19} + \frac{- 4}{57}\]
Re-arrange suitably and find the sum in each of the following:
\[\frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5}\]
Subtract the first rational number from the second in each of the following:
\[\frac{1}{4}, \frac{- 3}{8}\]
Subtract the first rational number from the second in each of the following:
\[\frac{- 6}{7}, \frac{- 13}{14}\]
Fill in the blanks:
\[\frac{1}{2} \times \left( \frac{3}{4} + \frac{- 5}{12} \right) = \frac{1}{2} \times . . . . . . + . . . . . . \times \frac{- 5}{12}\]
State, True Or False
`7/9=(7÷5)/(9÷5)`
Compare: `0 and 3/4`
Arrange the following rational numbers in ascending order.
`(10)/(9),(13)/(12) and (19)/(18)`
In a rational number, denominator always has to be a non-zero integer.
