the numerator of a rational number is lesser than its denominator by 3. if numerator is tripled and denominator is increased by 20. the new number is 1 upon 8 find the rational number
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3(x-3) / x+20 = 1/8
3x-9 / x+ 20 = 1/8
Cross multiply
8(3x-9) = 1(x+20)
24x - 72 = x + 20
24x - x = 20 + 72
23x = 92
x = 92/23
x = 4
3x-9 / x+ 20 = 1/8
Cross multiply
8(3x-9) = 1(x+20)
24x - 72 = x + 20
24x - x = 20 + 72
23x = 92
x = 92/23
x = 4
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