Question

the sum of two rational number is 3 upon 20 if one of the number is 3upon 4 find the other​

Answer 1

let, other number=x

so,

$x + 3 {}^{4} = 3 {}^{20} \\ x = 3 {}^{20} - 3 {}^{4} \\ x = 3 {}^{16}$