Question

what number must be added to each term of the ratio 17:13 so that the ratio becomes 7:15​

Answer 1

${\huge{\underline{\pink{Given :}}}}$

According to the question :

Let the number added be ' x '.

17 : 13 + x = 7 : 15

Solving Equation :

=> 17 / 13 + x = 7 / 15

=> x = 17 / 13 - 7 / 15 ( LCM = 195 )

=> x = 17 × 15 / 13 × 15 - 7 × 13 / 15 × 13

=> x = 255 - 91 / 195

=> x = 164 / 195

=> x = 164 : 195