Math, asked by swaroop57, 11 months ago

24)Find (x+y)/(x-y), if (i)x=2/5.y=1/2
(ii)x=1/4,=3/2​

Answers

Answered by knshinde
0

Answer:

-9 and -1.4

Step-by-step explanation:

i)

 \frac{x + y}{ x - y}  =    \frac{ \frac{2}{5}  +  \frac{1}{2} }{ \frac{2}{5}  -  \frac{1}{2} }  \\  =  \frac{ \frac{4 + 5}{10} }{ \frac{4 - 5}{10} }  \\  =  \frac{9}{10}  \times  \frac{10}{ - 1}  \\  =  - 9

ii)

 \frac{x + y}{x - y}  =   \frac{ \frac{1}{4}  +  \frac{3}{2} }{ \frac{1}{4} -  \frac{3}{2}  }  \\  =  \frac{ \frac{2 + 12}{8} }{ \frac{2 - 12}{8} }   \\  =  \frac{14}{8}  \times  \frac{8}{ - 10}  \\  =  - 1.4

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