Question

4. Express 3/5 as rational number with numerator

(1) -21
(ii) 150​

Answer 1

(1). We can get the numerator as -21 if we multiply 3 with -7 .
So we will multiply and divide -7 i.e. 3*-7 / 5*-7
We get -21/-35
(2). Similarly doing the 2nd part
Multiply and divide by 50
3*50/5*50
We get 150/250