Question

if a upon b = 5 upon 8 then kind the values of the following ratios 1. b : a 2. a + b upon b 3. a+b upon a - b

jo bhi iska sahi answer dega usko mein brain least bana dunga​

Answer 1

Answer:

Step-by-step explanation:

$\frac ab=\frac 58\\\\Then \\\\\bf { 1. \ \frac ba=\frac 85}$

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$2. \ \frac ab=\frac 58\\\\Adding \ 1 \ in \ both \ sides\\\\ \ \frac ab +1=\frac 58+1\\\\\frac {a+b}{b}=\frac {5+8}{8}\\\\\bf \frac {a+b}{b}=\frac {13}{8}-----(1)$

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$3.\ \frac ab=\frac 58\\\\Subtracting \ 1 \ from \ both \ sides\\\\ \frac ab-1=\frac 58-1\\\\\frac{a-b}{b} =\frac{5-8}{8} =-\frac{3}{8} --------(2)\\\\Dividing \ (1) \ by \ (2)\\\\\frac{\frac{a+b}{b} }{\frac{a-b}{b} } =\frac{\frac{13}{8}}{-\frac38} \\\\\bf \therefore \frac{a+b}{a-b} =-\frac{13}{3}$