question_answer

                  

Find the equivalent fraction of \[\frac{3}{5}\] having:

(a) denominator 20

(b) numerator 9

(c) denominator 30

(d) numerator 27

Answer:

(a) We have

We used cross multiplication:

or

or

So,       \[\frac{3}{5}=\frac{12}{20}\]

(b) We have

We used cross multiplication:

or

or

So,

(c) We have

We used cross multiplication:

or

or

So,       \[\frac{3}{5}=\frac{18}{30}\]

(d) We have

We used cross multiplication:

or

or

So,       \[\frac{3}{5}=\frac{27}{45}\]