A fraction equivalent to $\frac{\mathbf{3}}{\mathbf{5}}$  is

Equivalent fraction : A given fraction and the fraction obtained by multiplying or dividing its numerator and denominator by the same non-zero number , are called equivalent fractions

A fraction equivalent to $\frac{\mathbf{3}}{\mathbf{5}}$  is  $\frac{\mathbf{3}\mathbf{\times }\mathbf{2}}{\mathbf{5}\mathbf{\times }\mathbf{2}}$