Question

Express 3/5 as a rational no. with denominator -21

Answer 1

Answer:

-12.6/-21

Step-by-step explanation:

let the new rational number be x/-21 (or) -x/21

then equate both the rational numbers

(3/5)=(-x/21)

cross multiply both sides

then,

-5x=63

therefore x= -12.6 (or) 12(3/5)