numerator of a rational number is 3 less than its denominator if 5 is added to both numerator and denominator then it becomes two three upon four find the number
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let the initial number be x/x+3
new number = x+5/x+8
= x+5/x+8 = 3/4
= 4(x+5) = 3(x+8)
= 4x + 20 = 3x + 24
= 4x - 3x = 24-20
= x = 4
thus the number is 4/7
new number = x+5/x+8
= x+5/x+8 = 3/4
= 4(x+5) = 3(x+8)
= 4x + 20 = 3x + 24
= 4x - 3x = 24-20
= x = 4
thus the number is 4/7
GunjanJathliya:
what should be subtracted from numerator and denominator of a fraction 15/19 to be coms 5/7
let the number to be subtracted be x
15-x/19-x = 5/7
7(15-x) = 5(19-x)
105-7x = 95- 5x
105-95 = 7x -5x
2x = 10
x= 5
ur answer is right
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